Another portion of removal of global getters getXXXPlayer

src/main/java/forge/Card.java

@@ -1362,7 +1362,7 @@ public class Card extends GameEntity implements Comparable<Card> {
                                     continue;
                                 }
                             }
-                            ComputerUtil.playSpellAbilityWithoutPayingManaCost(sa);
+                            ComputerUtil.playSpellAbilityWithoutPayingManaCost(c.getOwner(), sa);
                             break;
                         }
                     }
@@ -6920,20 +6920,15 @@ public class Card extends GameEntity implements Comparable<Card> {
                 return false;
             }
         } else if (property.startsWith("dealtDamageToYouThisTurn")) {
-            if (!(this.getDamageHistory().getDealtDmgToHumanThisTurn() && sourceController.isHuman())
-                    && !(this.getDamageHistory().getDealtDmgToComputerThisTurn() && sourceController.isComputer())) {
+            if ( !this.getDamageHistory().getThisTurnDamaged().contains(sourceController) ) {
                 return false;
             }
         } else if (property.startsWith("controllerWasDealtCombatDamageByThisTurn")) {
-            if (!(source.getDamageHistory().getDealtCombatDmgToHumanThisTurn() && this.getController().equals(AllZone.getHumanPlayer()))
-                    && !(source.getDamageHistory().getDealtCombatDmgToComputerThisTurn() && this.getController().equals(
-                            AllZone.getComputerPlayer()))) {
+            if ( !this.getDamageHistory().getThisTurnCombatDamaged().contains(sourceController) ) {
                 return false;
             }
         } else if (property.startsWith("controllerWasDealtDamageByThisTurn")) {
-            if (!(source.getDamageHistory().getDealtDmgToHumanThisTurn() && this.getController().equals(AllZone.getHumanPlayer()))
-                    && !(source.getDamageHistory().getDealtDmgToComputerThisTurn() && this.getController()
-                            .equals(AllZone.getComputerPlayer()))) {
+            if ( !this.getDamageHistory().getThisTurnDamaged().contains(sourceController) ) {
                 return false;
             }
         } else if (property.startsWith("wasDealtDamageThisTurn")) {

src/main/java/forge/CardDamageHistory.java

@@ -1,5 +1,10 @@
 package forge;
 
+import java.util.ArrayList;
+import java.util.List;
+
+import forge.game.player.Player;
+
 /** 
  * TODO: Write javadoc for this type.
  *
@@ -14,12 +19,10 @@ public class CardDamageHistory {
     private boolean creatureBlockedThisTurn = false;
     private boolean creatureGotBlockedThisCombat = false;
     private boolean creatureGotBlockedThisTurn = false;
-    private boolean dealtDmgToHumanThisTurn = false;
-    private boolean dealtDmgToComputerThisTurn = false;
-    private boolean dealtDmgToHumanThisGame = false;
-    private boolean dealtDmgToComputerThisGame = false;
-    private boolean dealtCombatDmgToHumanThisTurn = false;
-    private boolean dealtCombatDmgToComputerThisTurn = false;
+    
+    private final List<Player> thisTurnDamaged = new ArrayList<Player>(2);
+    private final List<Player> thisTurnCombatDamaged = new ArrayList<Player>(2);
+    private final List<Player> thisGameDamaged = new ArrayList<Player>(2);
     // used to see if an attacking creature with a triggering attack ability
     // triggered this phase:
     /**
@@ -200,137 +203,37 @@ public class CardDamageHistory {
     public final boolean getCreatureGotBlockedThisTurn() {
         return this.creatureGotBlockedThisTurn;
     }
-    /**
-     * <p>
-     * Setter for the field <code>dealtDmgToHumanThisTurn</code>.
-     * </p>
-     * 
-     * @param b
-     *            a boolean.
-     */
-    public final void setDealtDmgToHumanThisTurn(final boolean b) {
-        this.dealtDmgToHumanThisTurn = b;
-        if (b) {
-            this.setDealtDmgToHumanThisGame(true);
-        }
+    public final List<Player> getThisTurnDamaged() {
+        return thisTurnDamaged;
+    }
+    public final List<Player> getThisTurnCombatDamaged() {
+        return thisTurnCombatDamaged;
+    }
+    public final List<Player> getThisGameDamaged() {
+        return thisGameDamaged;
     }
     /**
-     * <p>
-     * Getter for the field <code>dealtDmgToHumanThisTurn</code>.
-     * </p>
-     * 
-     * @return a boolean.
+     * TODO: Write javadoc for this method.
+     * @param player
      */
-    public final boolean getDealtDmgToHumanThisTurn() {
-        return this.dealtDmgToHumanThisTurn;
+    public void registerCombatDamage(Player player) {
+        if ( !thisTurnCombatDamaged.contains(player) )
+            thisTurnCombatDamaged.add(player);
     }
     /**
-     * <p>
-     * Setter for the field <code>dealtDmgToComputerThisTurn</code>.
-     * </p>
-     * 
-     * @param b
-     *            a boolean.
+     * TODO: Write javadoc for this method.
      */
-    public final void setDealtDmgToComputerThisTurn(final boolean b) {
-        this.dealtDmgToComputerThisTurn = b;
-        if (b) {
-            this.setDealtDmgToComputerThisGame(true);
-        }
+    public void newTurn() {
+        thisTurnCombatDamaged.clear();
+        thisTurnDamaged.clear();
     }
     /**
-     * <p>
-     * Getter for the field <code>dealtCombatDmgToComputerThisGame</code>.
-     * </p>
-     * 
-     * @return a boolean.
+     * TODO: Write javadoc for this method.
+     * @param player
      */
-    public final boolean getDealtDmgToComputerThisTurn() {
-        return this.dealtDmgToComputerThisTurn;
-    }
-    /**
-     * <p>
-     * Setter for the field <code>dealtDmgToHumanThisGame</code>.
-     * </p>
-     * 
-     * @param b
-     *            a boolean.
-     */
-    public final void setDealtDmgToHumanThisGame(final boolean b) {
-        this.dealtDmgToHumanThisGame = b;
-    }
-    /**
-     * <p>
-     * Getter for the field <code>dealtDmgToHumanThisGame</code>.
-     * </p>
-     * 
-     * @return a boolean.
-     */
-    public final boolean getDealtDmgToHumanThisGame() {
-        return this.dealtDmgToHumanThisGame;
-    }
-    /**
-     * <p>
-     * Setter for the field <code>dealtDmgToComputerThisGame</code>.
-     * </p>
-     * 
-     * @param b
-     *            a boolean.
-     */
-    public final void setDealtDmgToComputerThisGame(final boolean b) {
-        this.dealtDmgToComputerThisGame = b;
-    }
-    /**
-     * <p>
-     * Getter for the field <code>dealtCombatDmgToComputerThisGame</code>.
-     * </p>
-     * 
-     * @return a boolean.
-     */
-    public final boolean getDealtDmgToComputerThisGame() {
-        return this.dealtDmgToComputerThisGame;
-    }
-    /**
-     * <p>
-     * Setter for the field <code>dealtCombatDmgToHumanThisTurn</code>.
-     * </p>
-     * 
-     * @param b
-     *            a boolean.
-     */
-    public final void setDealtCombatDmgToHumanThisTurn(final boolean b) {
-        this.dealtCombatDmgToHumanThisTurn = b;
-    }
-    /**
-     * <p>
-     * Getter for the field <code>dealtDmgToHumanThisTurn</code>.
-     * </p>
-     * 
-     * @return a boolean.
-     */
-    public final boolean getDealtCombatDmgToHumanThisTurn() {
-        return this.dealtCombatDmgToHumanThisTurn;
-    }
-    /**
-     * <p>
-     * Setter for the field <code>dealtCombatDmgToComputerThisTurn</code>.
-     * </p>
-     * 
-     * @param b
-     *            a boolean.
-     */
-    public final void setDealtCombatDmgToComputerThisTurn(final boolean b) {
-        this.dealtCombatDmgToComputerThisTurn = b;
-    }
-    /**
-     * <p>
-     * Getter for the field <code>dealtDmgToComputerThisTurn</code>.
-     * </p>
-     * 
-     * @return a boolean.
-     */
-    public final boolean getDealtCombatDmgToComputerThisTurn() {
-        return this.dealtCombatDmgToComputerThisTurn;
+    public void registerDamage(Player player) {
+        if ( !thisTurnDamaged.contains(player) )
+            thisTurnDamaged.add(player);        
     }
 
 }

src/main/java/forge/CardPredicates.java

@@ -106,7 +106,16 @@ public final class CardPredicates {
         return new Predicate<Card>() {
             @Override
             public boolean apply(final Card c) {
-                return (c.isCreature() && CombatUtil.canBlock(attacker, c));
+                return c.isCreature() && CombatUtil.canBlock(attacker, c);
+            }
+        };
+    }
+    
+    public final static Predicate<Card> possibleBlockerForAtLeastOne(final Iterable<Card> attackers) {
+        return new Predicate<Card>() {
+            @Override
+            public boolean apply(final Card c) {
+                return c.isCreature() && CombatUtil.canBlockAtLeastOne(c, attackers);
             }
         };
     }    

src/main/java/forge/CardUtil.java

@@ -38,7 +38,7 @@ import forge.card.CardManaCost;
 import forge.card.EditionInfo;
 import forge.card.mana.ManaCost;
 import forge.control.input.InputPayManaCostUtil;
-import forge.game.zone.PlayerZone;
+import forge.game.player.Player;
 import forge.game.zone.ZoneType;
 import forge.gui.GuiDisplayUtil;
 import forge.item.CardPrinted;
@@ -627,10 +627,10 @@ public final class CardUtil {
             final Card src) {
         List<Card> res = new ArrayList<Card>();
         if (to != ZoneType.Stack) {
-            res.addAll(((PlayerZone) AllZone.getComputerPlayer().getZone(to)).getCardsAddedThisTurn(from));
-            res.addAll(((PlayerZone) AllZone.getHumanPlayer().getZone(to)).getCardsAddedThisTurn(from));
+            for (Player p : AllZone.getPlayersInGame())
+                res.addAll(p.getZone(to).getCardsAddedThisTurn(from));
         } else {
-            res.addAll(((PlayerZone) AllZone.getStackZone()).getCardsAddedThisTurn(from));
+            res.addAll(AllZone.getStackZone().getCardsAddedThisTurn(from));
         }
 
         res = CardLists.getValidCards(res, valid, src.getController(), src);

src/main/java/forge/GameActionUtil.java

@@ -158,8 +158,9 @@ public final class GameActionUtil {
                         GuiChoose.oneOrNone("Revealed cards:", revealed);
 
                         if (cascadedCard != null) {
+                            Player p = cascadedCard.getController();
 
-                            if (cascadedCard.getController().isHuman()) {
+                            if (p.isHuman()) {
                                 final StringBuilder title = new StringBuilder();
                                 title.append(cascCard.getName()).append(" - Cascade Ability");
                                 final StringBuilder question = new StringBuilder();
@@ -188,7 +189,7 @@ public final class GameActionUtil {
                                             continue;
                                         }
                                     }
-                                    ComputerUtil.playSpellAbilityWithoutPayingManaCost(sa);
+                                    ComputerUtil.playSpellAbilityWithoutPayingManaCost(p, sa);
                                     revealed.remove(cascadedCard);
                                     break;
                                 }
@@ -290,8 +291,9 @@ public final class GameActionUtil {
                             GuiChoose.oneOrNone("Revealed cards:", revealed);
                             for (int i = 0; i < rippleMax; i++) {
                                 if (rippledCards[i] != null) {
+                                    Player p = rippledCards[i].getController(); 
 
-                                    if (rippledCards[i].getController().isHuman()) {
+                                    if (p.isHuman()) {
                                         final Object[] possibleValues = { "Yes", "No" };
                                         final Object q = JOptionPane.showOptionDialog(null,
                                                 "Cast " + rippledCards[i].getName() + "?", "Ripple",
@@ -316,7 +318,7 @@ public final class GameActionUtil {
                                                     continue;
                                                 }
                                             }
-                                            ComputerUtil.playSpellAbilityWithoutPayingManaCost(sa);
+                                            ComputerUtil.playSpellAbilityWithoutPayingManaCost(p, sa);
                                             revealed.remove(rippledCards[i]);
                                             break;
                                         }
@@ -888,12 +890,7 @@ public final class GameActionUtil {
             GameActionUtil.playerCombatDamageWhirlingDervish(c);
         }
         
-        if (player.equals(AllZone.getHumanPlayer())) {
-            c.getDamageHistory().setDealtDmgToHumanThisTurn(true);
-        }
-        if (player.equals(AllZone.getComputerPlayer())) {
-            c.getDamageHistory().setDealtDmgToComputerThisTurn(true);
-        }
+        c.getDamageHistory().registerDamage(player);
     }
 
     // restricted to combat damage, restricted to players
@@ -978,12 +975,7 @@ public final class GameActionUtil {
             GameActionUtil.executeCelestialMantle(c);
         }
 
-        if (player.equals(AllZone.getHumanPlayer())) {
-            c.getDamageHistory().setDealtCombatDmgToHumanThisTurn(true);
-        }
-        if (player.equals(AllZone.getComputerPlayer())) {
-            c.getDamageHistory().setDealtCombatDmgToComputerThisTurn(true);
-        }
+        c.getDamageHistory().registerCombatDamage(player);
     } // executeCombatDamageToPlayerEffects
 
     /**

src/main/java/forge/card/abilityfactory/AbilityFactoryAlterLife.java

@@ -334,7 +334,7 @@ public class AbilityFactoryAlterLife {
                 && CombatUtil.lifeInDanger(AllZone.getCombat()));
 
         if (abCost != null && !lifeCritical) {
-            if (!CostUtil.checkSacrificeCost(abCost, source, false)) {
+            if (!CostUtil.checkSacrificeCost(ai, abCost, source, false)) {
                 return false;
             }
 
@@ -342,7 +342,7 @@ public class AbilityFactoryAlterLife {
                 return false;
             }
 
-            if (!CostUtil.checkDiscardCost(abCost, source)) {
+            if (!CostUtil.checkDiscardCost(ai, abCost, source)) {
                 return false;
             }
 
@@ -760,11 +760,11 @@ public class AbilityFactoryAlterLife {
                 return false;
             }
 
-            if (!CostUtil.checkDiscardCost(abCost, source)) {
+            if (!CostUtil.checkDiscardCost(ai, abCost, source)) {
                 return false;
             }
 
-            if (!CostUtil.checkSacrificeCost(abCost, source)) {
+            if (!CostUtil.checkSacrificeCost(ai, abCost, source)) {
                 return false;
             }
 
@@ -1242,7 +1242,7 @@ public class AbilityFactoryAlterLife {
      *            a {@link forge.card.spellability.SpellAbility} object.
      * @return a boolean.
      */
-    private static boolean poisonCanPlayAI(final Player aiPlayer, final AbilityFactory af, final SpellAbility sa) {
+    private static boolean poisonCanPlayAI(final Player ai, final AbilityFactory af, final SpellAbility sa) {
         final Cost abCost = sa.getPayCosts();
         final Card source = sa.getSourceCard();
         final HashMap<String, String> params = af.getMapParams();
@@ -1261,7 +1261,7 @@ public class AbilityFactoryAlterLife {
                 return false;
             }
 
-            if (!CostUtil.checkSacrificeCost(abCost, source)) {
+            if (!CostUtil.checkSacrificeCost(ai, abCost, source)) {
                 return false;
             }
         }
@@ -1280,7 +1280,7 @@ public class AbilityFactoryAlterLife {
 
         if (sa.getTarget() != null) {
             tgt.resetTargets();
-            sa.getTarget().addTarget(aiPlayer.getOpponent());
+            sa.getTarget().addTarget(ai.getOpponent());
         }
 
         return true;

src/main/java/forge/card/abilityfactory/AbilityFactoryChangeZone.java

@@ -491,7 +491,7 @@ public final class AbilityFactoryChangeZone {
 
         if (abCost != null) {
             // AI currently disabled for these costs
-            if (!CostUtil.checkSacrificeCost(abCost, source)
+            if (!CostUtil.checkSacrificeCost(ai, abCost, source)
                     && !(destination.equals("Battlefield") && !source.isLand())) {
                 return false;
             }
@@ -500,12 +500,12 @@ public final class AbilityFactoryChangeZone {
                 return false;
             }
 
-            if (!CostUtil.checkDiscardCost(abCost, source)) {
+            if (!CostUtil.checkDiscardCost(ai, abCost, source)) {
                 for (final CostPart part : abCost.getCostParts()) {
                     if (part instanceof CostDiscard) {
                         CostDiscard cd = (CostDiscard) part;
                         // this is mainly for typecycling
-                        if (!cd.getThis() || !ComputerUtil.isWorseThanDraw(source)) {
+                        if (!cd.getThis() || !ComputerUtil.isWorseThanDraw(ai, source)) {
                             return false;
                         }
                     }
@@ -1491,7 +1491,7 @@ public final class AbilityFactoryChangeZone {
      *            a {@link forge.card.spellability.SpellAbility} object.
      * @return a boolean.
      */
-    private static boolean changeKnownOriginCanPlayAI(final Player aiPlayer, final AbilityFactory af, final SpellAbility sa) {
+    private static boolean changeKnownOriginCanPlayAI(final Player ai, final AbilityFactory af, final SpellAbility sa) {
         // Retrieve either this card, or target Cards in Graveyard
         final Cost abCost = af.getAbCost();
         final Card source = sa.getSourceCard();
@@ -1504,7 +1504,7 @@ public final class AbilityFactoryChangeZone {
 
         if (abCost != null) {
             // AI currently disabled for these costs
-            if (!CostUtil.checkSacrificeCost(abCost, source)) {
+            if (!CostUtil.checkSacrificeCost(ai, abCost, source)) {
                 return false;
             }
 
@@ -1512,7 +1512,7 @@ public final class AbilityFactoryChangeZone {
                 return false;
             }
 
-            if (!CostUtil.checkDiscardCost(abCost, source)) {
+            if (!CostUtil.checkDiscardCost(ai, abCost, source)) {
                 return false;
             }
 
@@ -1526,7 +1526,7 @@ public final class AbilityFactoryChangeZone {
 
         final Target tgt = sa.getTarget();
         if (tgt != null) {
-            if (!AbilityFactoryChangeZone.changeKnownPreferredTarget(aiPlayer, af, sa, false)) {
+            if (!AbilityFactoryChangeZone.changeKnownPreferredTarget(ai, af, sa, false)) {
                 return false;
             }
         } else {
@@ -1563,7 +1563,7 @@ public final class AbilityFactoryChangeZone {
                     return false;
                 }
 
-                final ArrayList<Object> objects = AbilityFactory.predictThreatenedObjects(aiPlayer, af);
+                final ArrayList<Object> objects = AbilityFactory.predictThreatenedObjects(ai, af);
                 boolean contains = false;
                 for (final Card c : retrieval) {
                     if (objects.contains(c)) {
@@ -1577,7 +1577,7 @@ public final class AbilityFactoryChangeZone {
         }
         // don't return something to your hand if your hand is full of good stuff
         if (destination.equals(ZoneType.Hand) && origin.equals(ZoneType.Graveyard)) {
-            int handSize = aiPlayer.getCardsIn(ZoneType.Hand).size();
+            int handSize = ai.getCardsIn(ZoneType.Hand).size();
             if (Singletons.getModel().getGameState().getPhaseHandler().getPhase().isBefore(PhaseType.MAIN1)) {
                 return false;
             }
@@ -1585,8 +1585,8 @@ public final class AbilityFactoryChangeZone {
                     && handSize > 1) {
                 return false;
             }
-            if (Singletons.getModel().getGameState().getPhaseHandler().isPlayerTurn(aiPlayer)
-                    && handSize >= aiPlayer.getMaxHandSize()) {
+            if (Singletons.getModel().getGameState().getPhaseHandler().isPlayerTurn(ai)
+                    && handSize >= ai.getMaxHandSize()) {
                 return false;
             }
         }
@@ -1848,7 +1848,7 @@ public final class AbilityFactoryChangeZone {
                     }
                     return false;
                 } else {
-                    if (!ComputerUtil.shouldCastLessThanMax(source)) {
+                    if (!ComputerUtil.shouldCastLessThanMax(ai, source)) {
                         return false;
                     }
                     break;
@@ -1959,7 +1959,7 @@ public final class AbilityFactoryChangeZone {
                     tgt.resetTargets();
                     return false;
                 } else {
-                    if (!ComputerUtil.shouldCastLessThanMax(source)) {
+                    if (!ComputerUtil.shouldCastLessThanMax(ai, source)) {
                         return false;
                     }
                     break;
@@ -2575,7 +2575,7 @@ public final class AbilityFactoryChangeZone {
                 return false;
             }
 
-            if (!CostUtil.checkDiscardCost(abCost, source)) {
+            if (!CostUtil.checkDiscardCost(ai, abCost, source)) {
                 return false;
             }
 

src/main/java/forge/card/abilityfactory/AbilityFactoryChoose.java

@@ -375,6 +375,8 @@ public final class AbilityFactoryChoose {
                                 card.setChosenType(choice);
                             }
                         } else {
+                            Player ai = sa.getActivatingPlayer();
+                            Player opp = ai.getOpponent();
                             String chosen = "";
                             if (params.containsKey("AILogic")) {
                                 final String logic = params.get("AILogic");
@@ -383,22 +385,19 @@ public final class AbilityFactoryChoose {
                                             .getCardsIn(ZoneType.Battlefield));
                                 }
                                 if (logic.equals("MostProminentComputerControls")) {
-                                    chosen = CardFactoryUtil.getMostProminentCreatureType(AllZone.getComputerPlayer()
-                                            .getCardsIn(ZoneType.Battlefield));
+                                    chosen = CardFactoryUtil.getMostProminentCreatureType(ai.getCardsIn(ZoneType.Battlefield));
                                 }
                                 if (logic.equals("MostProminentHumanControls")) {
-                                    chosen = CardFactoryUtil.getMostProminentCreatureType(AllZone.getHumanPlayer()
-                                            .getCardsIn(ZoneType.Battlefield));
+                                    chosen = CardFactoryUtil.getMostProminentCreatureType(opp.getCardsIn(ZoneType.Battlefield));
                                     if (!CardUtil.isACreatureType(chosen) || invalidTypes.contains(chosen)) {
-                                        chosen = CardFactoryUtil.getMostProminentCreatureType(CardLists.filterControlledBy(AllZoneUtil.getCardsInGame(), AllZone.getHumanPlayer()));
+                                        chosen = CardFactoryUtil.getMostProminentCreatureType(CardLists.filterControlledBy(AllZoneUtil.getCardsInGame(), opp));
                                     }
                                 }
                                 if (logic.equals("MostProminentInComputerDeck")) {
-                                    chosen = CardFactoryUtil.getMostProminentCreatureType(CardLists.filterControlledBy(AllZoneUtil.getCardsInGame(), AllZone.getComputerPlayer()));
+                                    chosen = CardFactoryUtil.getMostProminentCreatureType(CardLists.filterControlledBy(AllZoneUtil.getCardsInGame(), ai));
                                 }
                                 if (logic.equals("MostProminentInComputerGraveyard")) {
-                                    chosen = CardFactoryUtil.getMostProminentCreatureType(AllZone.getComputerPlayer()
-                                            .getCardsIn(ZoneType.Graveyard));
+                                    chosen = CardFactoryUtil.getMostProminentCreatureType(ai.getCardsIn(ZoneType.Graveyard));
                                 }
                             }
                             if (!CardUtil.isACreatureType(chosen) || invalidTypes.contains(chosen)) {
@@ -725,14 +724,16 @@ public final class AbilityFactoryChoose {
                     }
                 } else {
                     List<String> chosen = new ArrayList<String>();
+                    Player ai = sa.getActivatingPlayer();
+                    Player opp = ai.getOpponent();
                     if (params.containsKey("AILogic")) {
                         final String logic = params.get("AILogic");
                         if (logic.equals("MostProminentInHumanDeck")) {
-                            chosen.add(CardFactoryUtil.getMostProminentColor(CardLists.filterControlledBy(AllZoneUtil.getCardsInGame(), AllZone.getHumanPlayer())));
+                            chosen.add(CardFactoryUtil.getMostProminentColor(CardLists.filterControlledBy(AllZoneUtil.getCardsInGame(), opp)));
                         } else if (logic.equals("MostProminentInComputerDeck")) {
-                            chosen.add(CardFactoryUtil.getMostProminentColor(CardLists.filterControlledBy(AllZoneUtil.getCardsInGame(), AllZone.getComputerPlayer())));
+                            chosen.add(CardFactoryUtil.getMostProminentColor(CardLists.filterControlledBy(AllZoneUtil.getCardsInGame(), ai)));
                         } else if (logic.equals("MostProminentDualInComputerDeck")) {
-                            List<String> prominence = CardFactoryUtil.getColorByProminence(CardLists.filterControlledBy(AllZoneUtil.getCardsInGame(), AllZone.getComputerPlayer()));
+                            List<String> prominence = CardFactoryUtil.getColorByProminence(CardLists.filterControlledBy(AllZoneUtil.getCardsInGame(), ai));
                             chosen.add(prominence.get(0));
                             chosen.add(prominence.get(1));
                         }
@@ -740,15 +741,14 @@ public final class AbilityFactoryChoose {
                             chosen.add(CardFactoryUtil.getMostProminentColor(AllZoneUtil.getCardsInGame()));
                         }
                         else if (logic.equals("MostProminentHumanCreatures")) {
-                            List<Card> list = AllZoneUtil.getCreaturesInPlay(AllZone.getHumanPlayer());
+                            List<Card> list = AllZoneUtil.getCreaturesInPlay(opp);
                             if (list.isEmpty()) {
-                                list = CardLists.filter(CardLists.filterControlledBy(AllZoneUtil.getCardsInGame(), AllZone.getHumanPlayer()), CardPredicates.Presets.CREATURES);
+                                list = CardLists.filter(CardLists.filterControlledBy(AllZoneUtil.getCardsInGame(), opp), CardPredicates.Presets.CREATURES);
                             }
                             chosen.add(CardFactoryUtil.getMostProminentColor(list));
                         }
                         else if (logic.equals("MostProminentComputerControls")) {
-                            chosen.add(CardFactoryUtil.getMostProminentColor(AllZone.getComputerPlayer().getCardsIn(
-                                    ZoneType.Battlefield)));
+                            chosen.add(CardFactoryUtil.getMostProminentColor(ai.getCardsIn(ZoneType.Battlefield)));
                         }
                         else if (logic.equals("MostProminentPermanent")) {
                             final List<Card> list = AllZoneUtil.getCardsIn(ZoneType.Battlefield);
@@ -1640,11 +1640,9 @@ public final class AbilityFactoryChoose {
                         if (params.containsKey("AILogic")) {
                             final String logic = params.get("AILogic");
                             if (logic.equals("MostProminentInComputerDeck")) {
-                                chosen = CardFactoryUtil.getMostProminentCardName(AllZone.getComputerPlayer()
-                                        .getCardsIn(ZoneType.Library));
+                                chosen = CardFactoryUtil.getMostProminentCardName(p.getCardsIn(ZoneType.Library));
                             } else if (logic.equals("MostProminentInHumanDeck")) {
-                                chosen = CardFactoryUtil.getMostProminentCardName(AllZone.getHumanPlayer()
-                                        .getCardsIn(ZoneType.Library));
+                                chosen = CardFactoryUtil.getMostProminentCardName(p.getOpponent().getCardsIn(ZoneType.Library));
                             }
                         } else {
                             List<Card> list = CardLists.filterControlledBy(AllZoneUtil.getCardsInGame(), p.getOpponent());

src/main/java/forge/card/abilityfactory/AbilityFactoryCounterMagic.java

@@ -255,7 +255,7 @@ public class AbilityFactoryCounterMagic {
 
         if (abCost != null) {
             // AI currently disabled for these costs
-            if (!CostUtil.checkSacrificeCost(abCost, source)) {
+            if (!CostUtil.checkSacrificeCost(ai, abCost, source)) {
                 return false;
             }
             if (!CostUtil.checkLifeCost(abCost, source, 4, null)) {

src/main/java/forge/card/abilityfactory/AbilityFactoryCounters.java

@@ -337,15 +337,15 @@ public class AbilityFactoryCounters {
                 return false;
             }
 
-            if (!CostUtil.checkDiscardCost(abCost, source)) {
+            if (!CostUtil.checkDiscardCost(ai, abCost, source)) {
                 return false;
             }
 
-            if (!CostUtil.checkSacrificeCost(abCost, source)) {
+            if (!CostUtil.checkSacrificeCost(ai, abCost, source)) {
                 return false;
             }
 
-            if (!CostUtil.checkCreatureSacrificeCost(abCost, source)) {
+            if (!CostUtil.checkCreatureSacrificeCost(ai, abCost, source)) {
                 return false;
             }
 
@@ -805,7 +805,7 @@ public class AbilityFactoryCounters {
 
             @Override
             public boolean canPlayAI() {
-                return AbilityFactoryCounters.removeCanPlayAI(af, this);
+                return AbilityFactoryCounters.removeCanPlayAI(getActivatingPlayer(), af, this);
             }
 
             @Override
@@ -848,7 +848,7 @@ public class AbilityFactoryCounters {
                 // then call xCount with that card to properly calculate the
                 // amount
                 // Or choosing how many to sacrifice
-                return AbilityFactoryCounters.removeCanPlayAI(af, this);
+                return AbilityFactoryCounters.removeCanPlayAI(getActivatingPlayer(), af, this);
             }
 
             @Override
@@ -989,7 +989,7 @@ public class AbilityFactoryCounters {
      *            a {@link forge.card.spellability.SpellAbility} object.
      * @return a boolean.
      */
-    private static boolean removeCanPlayAI(final AbilityFactory af, final SpellAbility sa) {
+    private static boolean removeCanPlayAI(final Player ai, final AbilityFactory af, final SpellAbility sa) {
         // AI needs to be expanded, since this function can be pretty complex
         // based on what
         // the expected targets could be
@@ -1015,11 +1015,11 @@ public class AbilityFactoryCounters {
                 return false;
             }
 
-            if (!CostUtil.checkDiscardCost(abCost, source)) {
+            if (!CostUtil.checkDiscardCost(ai, abCost, source)) {
                 return false;
             }
 
-            if (!CostUtil.checkSacrificeCost(abCost, source)) {
+            if (!CostUtil.checkSacrificeCost(ai, abCost, source)) {
                 return false;
             }
 
@@ -1870,11 +1870,11 @@ public class AbilityFactoryCounters {
                 return false;
             }
 
-            if (!CostUtil.checkDiscardCost(abCost, source)) {
+            if (!CostUtil.checkDiscardCost(ai, abCost, source)) {
                 return false;
             }
 
-            if (!CostUtil.checkSacrificeCost(abCost, source)) {
+            if (!CostUtil.checkSacrificeCost(ai, abCost, source)) {
                 return false;
             }
         }

src/main/java/forge/card/abilityfactory/AbilityFactoryDealDamage.java

@@ -398,7 +398,7 @@ public class AbilityFactoryDealDamage {
             return false;
         }
 
-        if (!CostUtil.checkSacrificeCost(abCost, source)) {
+        if (!CostUtil.checkSacrificeCost(ai, abCost, source)) {
             return false;
         }
 

src/main/java/forge/card/abilityfactory/AbilityFactoryDebuff.java

@@ -304,7 +304,7 @@ public final class AbilityFactoryDebuff {
         final Cost cost = sa.getPayCosts();
 
         // temporarily disabled until AI is improved
-        if (!CostUtil.checkCreatureSacrificeCost(cost, source)) {
+        if (!CostUtil.checkCreatureSacrificeCost(ai, cost, source)) {
             return false;
         }
 

src/main/java/forge/card/abilityfactory/AbilityFactoryDestroy.java

@@ -229,7 +229,7 @@ public class AbilityFactoryDestroy {
         List<Card> list;
 
         if (abCost != null) {
-            if (!CostUtil.checkSacrificeCost(abCost, source)) {
+            if (!CostUtil.checkSacrificeCost(ai, abCost, source)) {
                 return false;
             }
 
@@ -237,7 +237,7 @@ public class AbilityFactoryDestroy {
                 return false;
             }
 
-            if (!CostUtil.checkDiscardCost(abCost, source)) {
+            if (!CostUtil.checkDiscardCost(ai, abCost, source)) {
                 return false;
             }
         }

src/main/java/forge/card/abilityfactory/AbilityFactoryEffect.java

@@ -97,7 +97,7 @@ public class AbilityFactoryEffect {
 
             @Override
             public boolean canPlayAI() {
-                return AbilityFactoryEffect.effectCanPlayAI(this.af, this);
+                return AbilityFactoryEffect.effectCanPlayAI(getActivatingPlayer(), this.af, this);
             }
 
             @Override
@@ -141,7 +141,7 @@ public class AbilityFactoryEffect {
 
             @Override
             public boolean canPlayAI() {
-                return AbilityFactoryEffect.effectCanPlayAI(this.af, this);
+                return AbilityFactoryEffect.effectCanPlayAI(getActivatingPlayer(), this.af, this);
             }
 
             @Override
@@ -189,7 +189,7 @@ public class AbilityFactoryEffect {
 
             @Override
             public boolean canPlayAI() {
-                return AbilityFactoryEffect.effectCanPlayAI(this.af, this);
+                return AbilityFactoryEffect.effectCanPlayAI(getActivatingPlayer(), this.af, this);
             }
 
             @Override
@@ -253,7 +253,7 @@ public class AbilityFactoryEffect {
      *            a {@link forge.card.spellability.SpellAbility} object.
      * @return a boolean.
      */
-    public static boolean effectCanPlayAI(final AbilityFactory af, final SpellAbility sa) {
+    public static boolean effectCanPlayAI(final Player ai, final AbilityFactory af, final SpellAbility sa) {
         final Random r = MyRandom.getRandom();
         final HashMap<String, String> params = af.getMapParams();
         boolean randomReturn = r.nextFloat() <= .6667;
@@ -263,7 +263,7 @@ public class AbilityFactoryEffect {
             logic = params.get("AILogic");
             final PhaseHandler phase = Singletons.getModel().getGameState().getPhaseHandler();
             if (logic.equals("BeginningOfOppTurn")) {
-                if (phase.isPlayerTurn(AllZone.getComputerPlayer()) || phase.getPhase().isAfter(PhaseType.DRAW)) {
+                if (phase.isPlayerTurn(ai.getOpponent()) || phase.getPhase().isAfter(PhaseType.DRAW)) {
                     return false;
                 }
                 randomReturn = true;
@@ -299,8 +299,8 @@ public class AbilityFactoryEffect {
             } else if (logic.equals("Always")) {
                 randomReturn = true;
             } else if (logic.equals("Evasion")) {
-                List<Card> comp = AllZoneUtil.getCreaturesInPlay(AllZone.getComputerPlayer());
-                List<Card> human = AllZoneUtil.getCreaturesInPlay(AllZone.getHumanPlayer());
+                List<Card> comp = AllZoneUtil.getCreaturesInPlay(ai);
+                List<Card> human = AllZoneUtil.getCreaturesInPlay(ai.getOpponent());
 
                 // only count creatures that can attack or block
                 comp = CardLists.filter(comp, new Predicate<Card>() {
@@ -340,9 +340,9 @@ public class AbilityFactoryEffect {
         if (tgt != null && tgt.canTgtPlayer()) {
             tgt.resetTargets();
             if (tgt.canOnlyTgtOpponent() || logic.equals("BeginningOfOppTurn")) {
-                tgt.addTarget(AllZone.getHumanPlayer());
+                tgt.addTarget(ai.getOpponent());
             } else {
-                tgt.addTarget(AllZone.getComputerPlayer());
+                tgt.addTarget(ai);
             }
         }
 

src/main/java/forge/card/abilityfactory/AbilityFactoryMana.java

@@ -338,8 +338,9 @@ public class AbilityFactoryMana {
                 int amount = params.containsKey("Amount") ? AbilityFactory.calculateAmount(af.getHostCard(),
                         params.get("Amount"), sa) : 1;
                 if (tgt == null || p.canBeTargetedBy(sa)) {
+                    Player activator = sa.getActivatingPlayer(); 
                     // AI color choice is set in ComputerUtils so only human players need to make a choice
-                    if (sa.getActivatingPlayer().isHuman()) {
+                    if (activator.isHuman()) {
                         //String colorsNeeded = abMana.getExpressChoice();
                         String[] colorsProduced = abMana.getComboColors().split(" ");
                         final StringBuilder choiceString = new StringBuilder();
@@ -378,7 +379,7 @@ public class AbilityFactoryMana {
                             final String logic = params.get("AILogic");
                             String chosen = Constant.Color.BLACK;
                             if (logic.equals("MostProminentInComputerHand")) {
-                                chosen = CardFactoryUtil.getMostProminentColor(AllZone.getComputerPlayer().getCardsIn(
+                                chosen = CardFactoryUtil.getMostProminentColor(activator.getCardsIn(
                                         ZoneType.Hand));
                             }
                             GuiChoose.one("Computer picked: ", new String[]{chosen});
@@ -397,8 +398,9 @@ public class AbilityFactoryMana {
         else if (abMana.isAnyMana()) {
             for (Player p : tgtPlayers) {
                 if (tgt == null || p.canBeTargetedBy(sa)) {
+                    Player act = sa.getActivatingPlayer(); 
                     // AI color choice is set in ComputerUtils so only human players need to make a choice
-                    if (sa.getActivatingPlayer().isHuman()) {
+                    if (act.isHuman()) {
                         String colorsNeeded = abMana.getExpressChoice();
                         String choice = "";
                         if (colorsNeeded.length() == 1) {
@@ -433,8 +435,7 @@ public class AbilityFactoryMana {
                             final String logic = params.get("AILogic");
                             String chosen = Constant.Color.BLACK;
                             if (logic.equals("MostProminentInComputerHand")) {
-                                chosen = CardFactoryUtil.getMostProminentColor(AllZone.getComputerPlayer().getCardsIn(
-                                        ZoneType.Hand));
+                                chosen = CardFactoryUtil.getMostProminentColor(act.getCardsIn(ZoneType.Hand));
                             }
                             GuiChoose.one("Computer picked: ", new String[]{chosen});
                             abMana.setExpressChoice(InputPayManaCostUtil.getShortColorString(chosen));
@@ -1131,7 +1132,7 @@ public class AbilityFactoryMana {
 
             @Override
             public boolean chkAIDrawback() {
-                return AbilityFactoryMana.drainManaPlayDrawbackAI(af, this);
+                return AbilityFactoryMana.drainManaPlayDrawbackAI(getActivatingPlayer(), af, this);
             }
 
             @Override
@@ -1288,7 +1289,7 @@ public class AbilityFactoryMana {
      *            a {@link forge.card.spellability.SpellAbility} object.
      * @return a boolean.
      */
-    private static boolean drainManaPlayDrawbackAI(final AbilityFactory af, final SpellAbility sa) {
+    private static boolean drainManaPlayDrawbackAI(final Player ai, final AbilityFactory af, final SpellAbility sa) {
         // AI cannot use this properly until he can use SAs during Humans turn
         final HashMap<String, String> params = af.getMapParams();
         final Target tgt = sa.getTarget();
@@ -1299,12 +1300,12 @@ public class AbilityFactoryMana {
         if (tgt == null) {
             final ArrayList<Player> defined = AbilityFactory.getDefinedPlayers(source, params.get("Defined"), sa);
 
-            if (defined.contains(AllZone.getComputerPlayer())) {
+            if (defined.contains(ai)) {
                 return false;
             }
         } else {
             tgt.resetTargets();
-            tgt.addTarget(AllZone.getHumanPlayer());
+            tgt.addTarget(ai.getOpponent());
         }
 
         final AbilitySub subAb = sa.getSubAbility();

src/main/java/forge/card/abilityfactory/AbilityFactoryPermanentState.java

@@ -42,7 +42,6 @@ import forge.card.spellability.AbilitySub;
 import forge.card.spellability.Spell;
 import forge.card.spellability.SpellAbility;
 import forge.card.spellability.Target;
-import forge.game.phase.CombatUtil;
 import forge.game.phase.PhaseHandler;
 import forge.game.phase.PhaseType;
 import forge.game.player.ComputerUtil;
@@ -638,7 +637,7 @@ public class AbilityFactoryPermanentState {
             if (p.isHuman()) {
                 AllZone.getInputControl().setInput(CardFactoryUtil.inputUntapUpToNType(num, valid));
             } else {
-                List<Card> list = AllZone.getComputerPlayer().getCardsIn(ZoneType.Battlefield);
+                List<Card> list = p.getCardsIn(ZoneType.Battlefield);
                 list = CardLists.getType(list, valid);
                 list = CardLists.filter(list, Presets.TAPPED);
 
@@ -940,7 +939,7 @@ public class AbilityFactoryPermanentState {
                 return true;
             } else if (mandatory) {
                 // not enough preferred targets, but mandatory so keep going:
-                return AbilityFactoryPermanentState.tapUnpreferredTargeting(af, sa, mandatory);
+                return AbilityFactoryPermanentState.tapUnpreferredTargeting(ai, af, sa, mandatory);
             }
         }
 
@@ -1024,7 +1023,7 @@ public class AbilityFactoryPermanentState {
                     }
                     return false;
                 } else {
-                    if (!ComputerUtil.shouldCastLessThanMax(source)) {
+                    if (!ComputerUtil.shouldCastLessThanMax(ai, source)) {
                         return false;
                     }
                     break;
@@ -1036,37 +1035,20 @@ public class AbilityFactoryPermanentState {
                     && phase.getPhase().isBefore(PhaseType.COMBAT_DECLARE_BLOCKERS)) {
                 // Tap creatures possible blockers before combat during AI's turn.
 
+                List<Card> attackers;
                 if (phase.getPhase().isAfter(PhaseType.COMBAT_DECLARE_ATTACKERS)) {
                     //Combat has already started
-                    final List<Card> attackers = AllZone.getCombat().getAttackerList();
-                    List<Card> creatureList = CardLists.filter(tapList, new Predicate<Card>() {
-                        @Override
-                        public boolean apply(final Card c) {
-                            if (c.isCreature()) {
-                                return CombatUtil.canBlockAtLeastOne(c, attackers);
-                            }
-                            return false;
-                        }
-                    });
-                    if (!attackers.isEmpty() && !creatureList.isEmpty()) {
-                        choice = CardFactoryUtil.getBestCreatureAI(creatureList);
-                    }
+                    attackers = AllZone.getCombat().getAttackerList();
                 } else {
-                    final List<Card> attackers = ComputerUtil.getPossibleAttackers();
+                    attackers = CardLists.filter(ai.getCardsIn(ZoneType.Battlefield), CardPredicates.Presets.CREATURES_CAN_ATTACK);
                     attackers.remove(sa.getSourceCard());
-                    List<Card> creatureList = CardLists.filter(tapList, new Predicate<Card>() {
-                        @Override
-                        public boolean apply(final Card c) {
-                            if (c.isCreature()) {
-                                return CombatUtil.canBlockAtLeastOne(c, attackers);
-                            }
-                            return false;
-                        }
-                    });
-                    if (!attackers.isEmpty() && creatureList.size() == 1) {
-                        choice = CardFactoryUtil.getBestCreatureAI(creatureList);
-                    }
                 }
+                Predicate<Card> findBlockers = CardPredicates.possibleBlockerForAtLeastOne(attackers);
+                List<Card> creatureList = CardLists.filter(tapList, findBlockers);
+                if (!attackers.isEmpty() && !creatureList.isEmpty()) {
+                    choice = CardFactoryUtil.getBestCreatureAI(creatureList);
+                }
+                
             } else if (phase.isPlayerTurn(opp)
                     && phase.getPhase().isBefore(PhaseType.COMBAT_DECLARE_ATTACKERS)) {
                 // Tap creatures possible blockers before combat during AI's turn.
@@ -1087,7 +1069,7 @@ public class AbilityFactoryPermanentState {
                     }
                     return false;
                 } else {
-                    if (!ComputerUtil.shouldCastLessThanMax(source)) {
+                    if (!ComputerUtil.shouldCastLessThanMax(ai, source)) {
                         return false;
                     }
                     break;
@@ -1114,7 +1096,7 @@ public class AbilityFactoryPermanentState {
      *            a boolean.
      * @return a boolean.
      */
-    private static boolean tapUnpreferredTargeting(final AbilityFactory af, final SpellAbility sa,
+    private static boolean tapUnpreferredTargeting(final Player ai, final AbilityFactory af, final SpellAbility sa,
             final boolean mandatory) {
         final Card source = sa.getSourceCard();
         final Target tgt = sa.getTarget();
@@ -1127,21 +1109,21 @@ public class AbilityFactoryPermanentState {
         final String[] tappablePermanents = { "Enchantment", "Planeswalker" };
         List<Card> tapList = CardLists.getValidCards(list, tappablePermanents, source.getController(), source);
 
-        if (AbilityFactoryPermanentState.tapTargetList(af, sa, tapList, mandatory)) {
+        if (AbilityFactoryPermanentState.tapTargetList(ai, af, sa, tapList, mandatory)) {
             return true;
         }
 
         // try to just tap already tapped things
         tapList = CardLists.filter(list, Presets.TAPPED);
 
-        if (AbilityFactoryPermanentState.tapTargetList(af, sa, tapList, mandatory)) {
+        if (AbilityFactoryPermanentState.tapTargetList(ai, af, sa, tapList, mandatory)) {
             return true;
         }
 
         // just tap whatever we can
         tapList = list;
 
-        if (AbilityFactoryPermanentState.tapTargetList(af, sa, tapList, mandatory)) {
+        if (AbilityFactoryPermanentState.tapTargetList(ai, af, sa, tapList, mandatory)) {
             return true;
         }
 
@@ -1163,7 +1145,7 @@ public class AbilityFactoryPermanentState {
      *            a boolean.
      * @return a boolean.
      */
-    private static boolean tapTargetList(final AbilityFactory af, final SpellAbility sa, final List<Card> tapList,
+    private static boolean tapTargetList(final Player ai, final AbilityFactory af, final SpellAbility sa, final List<Card> tapList,
             final boolean mandatory) {
         final Card source = sa.getSourceCard();
         final Target tgt = sa.getTarget();
@@ -1186,7 +1168,7 @@ public class AbilityFactoryPermanentState {
                     }
                     return false;
                 } else {
-                    if (!ComputerUtil.shouldCastLessThanMax(source)) {
+                    if (!ComputerUtil.shouldCastLessThanMax(ai, source)) {
                         return false;
                     }
                     break;
@@ -1207,7 +1189,7 @@ public class AbilityFactoryPermanentState {
                     }
                     return false;
                 } else {
-                    if (!ComputerUtil.shouldCastLessThanMax(source)) {
+                    if (!ComputerUtil.shouldCastLessThanMax(ai, source)) {
                         return false;
                     }
                     break;
@@ -2180,7 +2162,7 @@ public class AbilityFactoryPermanentState {
                 return true;
             } else if (mandatory) {
                 // not enough preferred targets, but mandatory so keep going:
-                return AbilityFactoryPermanentState.tapUnpreferredTargeting(af, sa, mandatory);
+                return AbilityFactoryPermanentState.tapUnpreferredTargeting(ai, af, sa, mandatory);
             }
         }
 

src/main/java/forge/card/abilityfactory/AbilityFactoryPlay.java

@@ -96,7 +96,7 @@ public final class AbilityFactoryPlay {
 
             @Override
             public boolean canPlayAI() {
-                return AbilityFactoryPlay.playCanPlayAI(af, this);
+                return AbilityFactoryPlay.playCanPlayAI(getActivatingPlayer(), af, this);
             }
 
             @Override
@@ -106,7 +106,7 @@ public final class AbilityFactoryPlay {
 
             @Override
             public boolean doTrigger(final boolean mandatory) {
-                return AbilityFactoryPlay.playTriggerAI(af, this, mandatory);
+                return AbilityFactoryPlay.playTriggerAI(getActivatingPlayer(), af, this, mandatory);
             }
         }
         final SpellAbility abCopySpell = new AbilityPlay(af.getHostCard(), af.getAbCost(), af.getAbTgt());
@@ -134,7 +134,7 @@ public final class AbilityFactoryPlay {
 
             @Override
             public boolean canPlayAI() {
-                return AbilityFactoryPlay.playCanPlayAI(af, this);
+                return AbilityFactoryPlay.playCanPlayAI(getActivatingPlayer(), af, this);
             }
 
             @Override
@@ -144,7 +144,7 @@ public final class AbilityFactoryPlay {
 
             @Override
             public boolean canPlayFromEffectAI(final boolean mandatory, final boolean withOutManaCost) {
-                return AbilityFactoryPlay.playTriggerAI(af, this, mandatory);
+                return AbilityFactoryPlay.playTriggerAI(getActivatingPlayer(), af, this, mandatory);
             }
 
         };
@@ -193,7 +193,7 @@ public final class AbilityFactoryPlay {
 
             @Override
             public boolean doTrigger(final boolean mandatory) {
-                return AbilityFactoryPlay.playTriggerAI(af, this, mandatory);
+                return AbilityFactoryPlay.playTriggerAI(getActivatingPlayer(), af, this, mandatory);
             }
         }
         final SpellAbility dbCopySpell = new DrawbackPlay(af.getHostCard(), af.getAbTgt());
@@ -266,7 +266,7 @@ public final class AbilityFactoryPlay {
      *            a {@link forge.card.spellability.SpellAbility} object.
      * @return a boolean.
      */
-    private static boolean playCanPlayAI(final AbilityFactory af, final SpellAbility sa) {
+    private static boolean playCanPlayAI(final Player ai, final AbilityFactory af, final SpellAbility sa) {
         final Cost abCost = af.getAbCost();
         final Card source = af.getHostCard();
         final HashMap<String, String> params = af.getMapParams();
@@ -274,7 +274,7 @@ public final class AbilityFactoryPlay {
 
         if (abCost != null) {
             // AI currently disabled for these costs
-            if (!CostUtil.checkSacrificeCost(abCost, source)) {
+            if (!CostUtil.checkSacrificeCost(ai, abCost, source)) {
                 return false;
             }
 
@@ -282,7 +282,7 @@ public final class AbilityFactoryPlay {
                 return false;
             }
 
-            if (!CostUtil.checkDiscardCost(abCost, source)) {
+            if (!CostUtil.checkDiscardCost(ai, abCost, source)) {
                 return false;
             }
 
@@ -304,7 +304,7 @@ public final class AbilityFactoryPlay {
         if (tgt != null) {
             ZoneType zone = tgt.getZone().get(0);
             cards = AllZoneUtil.getCardsIn(zone);
-            cards = CardLists.getValidCards(cards, tgt.getValidTgts(), AllZone.getComputerPlayer(), source);
+            cards = CardLists.getValidCards(cards, tgt.getValidTgts(), ai, source);
             if (cards.isEmpty()) {
                 return false;
             }
@@ -331,13 +331,13 @@ public final class AbilityFactoryPlay {
      *            a boolean.
      * @return a boolean.
      */
-    private static boolean playTriggerAI(final AbilityFactory af, final SpellAbility sa, final boolean mandatory) {
+    private static boolean playTriggerAI(final Player ai, final AbilityFactory af, final SpellAbility sa, final boolean mandatory) {
 
         if (mandatory) {
             return true;
         }
 
-        return playCanPlayAI(af, sa);
+        return playCanPlayAI(ai, af, sa);
     }
 
     /**
@@ -505,7 +505,7 @@ public final class AbilityFactoryPlay {
                     if (tgtSA instanceof Spell) {
                         Spell spell = (Spell) tgtSA;
                         if (spell.canPlayFromEffectAI(!optional, true) || !optional) {
-                            ComputerUtil.playSpellAbilityWithoutPayingManaCost(tgtSA);
+                            ComputerUtil.playSpellAbilityWithoutPayingManaCost(controller, tgtSA);
                             if (remember) {
                                 source.addRemembered(tgtSA.getSourceCard());
                             }

src/main/java/forge/card/abilityfactory/AbilityFactoryPreventDamage.java

@@ -85,7 +85,7 @@ public class AbilityFactoryPreventDamage {
 
             @Override
             public boolean canPlayAI() {
-                return AbilityFactoryPreventDamage.preventDamageCanPlayAI(af, this);
+                return AbilityFactoryPreventDamage.preventDamageCanPlayAI(getActivatingPlayer(), af, this);
             }
 
             @Override
@@ -124,7 +124,7 @@ public class AbilityFactoryPreventDamage {
 
             @Override
             public boolean canPlayAI() {
-                return AbilityFactoryPreventDamage.preventDamageCanPlayAI(af, this);
+                return AbilityFactoryPreventDamage.preventDamageCanPlayAI(getActivatingPlayer(), af, this);
             }
 
             @Override
@@ -272,7 +272,7 @@ public class AbilityFactoryPreventDamage {
      *            a {@link forge.card.spellability.SpellAbility} object.
      * @return a boolean.
      */
-    private static boolean preventDamageCanPlayAI(final AbilityFactory af, final SpellAbility sa) {
+    private static boolean preventDamageCanPlayAI(final Player ai, final AbilityFactory af, final SpellAbility sa) {
         final HashMap<String, String> params = af.getMapParams();
         final Card hostCard = af.getHostCard();
         boolean chance = false;
@@ -284,11 +284,11 @@ public class AbilityFactoryPreventDamage {
             return false;
         }
 
-        if (!CostUtil.checkDiscardCost(cost, hostCard)) {
+        if (!CostUtil.checkDiscardCost(ai, cost, hostCard)) {
             return false;
         }
 
-        if (!CostUtil.checkSacrificeCost(cost, hostCard)) {
+        if (!CostUtil.checkSacrificeCost(ai, cost, hostCard)) {
             return false;
         }
 
@@ -345,14 +345,14 @@ public class AbilityFactoryPreventDamage {
             final ArrayList<Object> objects = new ArrayList<Object>();
             // AbilityFactory.predictThreatenedObjects(af);
 
-            if (objects.contains(AllZone.getComputerPlayer())) {
-                tgt.addTarget(AllZone.getComputerPlayer());
+            if (objects.contains(ai)) {
+                tgt.addTarget(ai);
             }
 
             final List<Card> threatenedTargets = new ArrayList<Card>();
             // filter AIs battlefield by what I can target
-            List<Card> targetables = AllZone.getComputerPlayer().getCardsIn(ZoneType.Battlefield);
-            targetables = CardLists.getValidCards(targetables, tgt.getValidTgts(), AllZone.getComputerPlayer(), hostCard);
+            List<Card> targetables = ai.getCardsIn(ZoneType.Battlefield);
+            targetables = CardLists.getValidCards(targetables, tgt.getValidTgts(), ai, hostCard);
 
             for (final Card c : targetables) {
                 if (objects.contains(c)) {
@@ -368,15 +368,15 @@ public class AbilityFactoryPreventDamage {
 
         } // Protect combatants
         else if (Singletons.getModel().getGameState().getPhaseHandler().is(PhaseType.COMBAT_DECLARE_BLOCKERS_INSTANT_ABILITY)) {
-            if (sa.canTarget(AllZone.getComputerPlayer()) && CombatUtil.wouldLoseLife(AllZone.getCombat())
+            if (sa.canTarget(ai) && CombatUtil.wouldLoseLife(AllZone.getCombat())
                     && (CombatUtil.lifeInDanger(AllZone.getCombat()) || sa.isAbility())
-                    && Singletons.getModel().getGameState().getPhaseHandler().isPlayerTurn(AllZone.getHumanPlayer())) {
-                tgt.addTarget(AllZone.getComputerPlayer());
+                    && Singletons.getModel().getGameState().getPhaseHandler().isPlayerTurn(ai.getOpponent())) {
+                tgt.addTarget(ai);
                 chance = true;
             } else {
                 // filter AIs battlefield by what I can target
-                List<Card> targetables = AllZone.getComputerPlayer().getCardsIn(ZoneType.Battlefield);
-                targetables = CardLists.getValidCards(targetables, tgt.getValidTgts(), AllZone.getComputerPlayer(), hostCard);
+                List<Card> targetables = ai.getCardsIn(ZoneType.Battlefield);
+                targetables = CardLists.getValidCards(targetables, tgt.getValidTgts(), ai, hostCard);
 
                 if (targetables.size() == 0) {
                     return false;
@@ -428,7 +428,7 @@ public class AbilityFactoryPreventDamage {
             // If there's no target on the trigger, just say yes.
             chance = true;
         } else {
-            chance = AbilityFactoryPreventDamage.preventDamageMandatoryTarget(af, sa, mandatory);
+            chance = AbilityFactoryPreventDamage.preventDamageMandatoryTarget(ai, af, sa, mandatory);
         }
 
         final AbilitySub subAb = sa.getSubAbility();
@@ -452,15 +452,15 @@ public class AbilityFactoryPreventDamage {
      *            a boolean.
      * @return a boolean.
      */
-    private static boolean preventDamageMandatoryTarget(final AbilityFactory af, final SpellAbility sa,
+    private static boolean preventDamageMandatoryTarget(final Player ai, final AbilityFactory af, final SpellAbility sa,
             final boolean mandatory) {
         final Card hostCard = af.getHostCard();
         final Target tgt = sa.getTarget();
         tgt.resetTargets();
         // filter AIs battlefield by what I can target
         List<Card> targetables = AllZoneUtil.getCardsIn(ZoneType.Battlefield);
-        targetables = CardLists.getValidCards(targetables, tgt.getValidTgts(), AllZone.getComputerPlayer(), hostCard);
-        final List<Card> compTargetables = CardLists.filterControlledBy(targetables, AllZone.getComputerPlayer());
+        targetables = CardLists.getValidCards(targetables, tgt.getValidTgts(), ai, hostCard);
+        final List<Card> compTargetables = CardLists.filterControlledBy(targetables, ai);
 
         if (targetables.size() == 0) {
             return false;
@@ -586,7 +586,7 @@ public class AbilityFactoryPreventDamage {
 
             @Override
             public boolean canPlayAI() {
-                return AbilityFactoryPreventDamage.preventDamageAllCanPlayAI(af, this);
+                return AbilityFactoryPreventDamage.preventDamageAllCanPlayAI(getActivatingPlayer(), af, this);
             }
 
             @Override
@@ -624,7 +624,7 @@ public class AbilityFactoryPreventDamage {
 
             @Override
             public boolean canPlayAI() {
-                return AbilityFactoryPreventDamage.preventDamageAllCanPlayAI(af, this);
+                return AbilityFactoryPreventDamage.preventDamageAllCanPlayAI(getActivatingPlayer(), af, this);
             }
 
             @Override
@@ -718,7 +718,7 @@ public class AbilityFactoryPreventDamage {
         return sb.toString();
     }
 
-    private static boolean preventDamageAllCanPlayAI(final AbilityFactory af, final SpellAbility sa) {
+    private static boolean preventDamageAllCanPlayAI(final Player ai, final AbilityFactory af, final SpellAbility sa) {
         final Card hostCard = af.getHostCard();
         boolean chance = false;
 
@@ -729,11 +729,11 @@ public class AbilityFactoryPreventDamage {
             return false;
         }
 
-        if (!CostUtil.checkDiscardCost(cost, hostCard)) {
+        if (!CostUtil.checkDiscardCost(ai, cost, hostCard)) {
             return false;
         }
 
-        if (!CostUtil.checkSacrificeCost(cost, hostCard)) {
+        if (!CostUtil.checkSacrificeCost(ai, cost, hostCard)) {
             return false;
         }
 

src/main/java/forge/card/abilityfactory/AbilityFactoryProtection.java

@@ -81,7 +81,7 @@ public final class AbilityFactoryProtection {
 
             @Override
             public boolean canPlayAI() {
-                return AbilityFactoryProtection.protectCanPlayAI(af, this);
+                return AbilityFactoryProtection.protectCanPlayAI(getActivatingPlayer(), af, this);
             }
 
             @Override
@@ -125,7 +125,7 @@ public final class AbilityFactoryProtection {
 
             @Override
             public boolean canPlayAI() {
-                return AbilityFactoryProtection.protectCanPlayAI(af, this);
+                return AbilityFactoryProtection.protectCanPlayAI(getActivatingPlayer(), af, this);
             }
 
             @Override
@@ -175,7 +175,7 @@ public final class AbilityFactoryProtection {
 
             @Override
             public boolean canPlayAI() {
-                return AbilityFactoryProtection.protectCanPlayAI(af, this);
+                return AbilityFactoryProtection.protectCanPlayAI(getActivatingPlayer(), af, this);
             }
 
             @Override
@@ -190,7 +190,7 @@ public final class AbilityFactoryProtection {
 
             @Override
             public boolean chkAIDrawback() {
-                return AbilityFactoryProtection.protectDrawbackAI(af, this);
+                return AbilityFactoryProtection.protectDrawbackAI(getActivatingPlayer(), af, this);
             }
 
             @Override
@@ -245,11 +245,11 @@ public final class AbilityFactoryProtection {
      *            a {@link forge.card.abilityfactory.AbilityFactory} object.
      * @return a {@link forge.CardList} object.
      */
-    private static List<Card> getProtectCreatures(final AbilityFactory af, final SpellAbility sa) {
+    private static List<Card> getProtectCreatures(final Player ai, final AbilityFactory af, final SpellAbility sa) {
         final Card hostCard = af.getHostCard();
         final ArrayList<String> gains = AbilityFactoryProtection.getProtectionList(hostCard, af.getMapParams());
 
-        List<Card> list = AllZoneUtil.getCreaturesInPlay(AllZone.getComputerPlayer());
+        List<Card> list = AllZoneUtil.getCreaturesInPlay(ai);
         list = CardLists.filter(list, new Predicate<Card>() {
             @Override
             public boolean apply(final Card c) {
@@ -264,7 +264,7 @@ public final class AbilityFactoryProtection {
 
                 // will the creature attack (only relevant for sorcery speed)?
                 if (Singletons.getModel().getGameState().getPhaseHandler().getPhase().isBefore(PhaseType.COMBAT_DECLARE_ATTACKERS)
-                        && Singletons.getModel().getGameState().getPhaseHandler().isPlayerTurn(AllZone.getComputerPlayer())
+                        && Singletons.getModel().getGameState().getPhaseHandler().isPlayerTurn(ai)
                         && CardFactoryUtil.doesCreatureAttackAI(c)) {
                     return true;
                 }
@@ -300,7 +300,7 @@ public final class AbilityFactoryProtection {
      *            a {@link forge.card.spellability.SpellAbility} object.
      * @return a boolean.
      */
-    private static boolean protectCanPlayAI(final AbilityFactory af, final SpellAbility sa) {
+    private static boolean protectCanPlayAI(final Player ai, final AbilityFactory af, final SpellAbility sa) {
         final HashMap<String, String> params = af.getMapParams();
         final Card hostCard = af.getHostCard();
         // if there is no target and host card isn't in play, don't activate
@@ -315,11 +315,11 @@ public final class AbilityFactoryProtection {
             return false;
         }
 
-        if (!CostUtil.checkDiscardCost(cost, hostCard)) {
+        if (!CostUtil.checkDiscardCost(ai, cost, hostCard)) {
             return false;
         }
 
-        if (!CostUtil.checkCreatureSacrificeCost(cost, hostCard)) {
+        if (!CostUtil.checkCreatureSacrificeCost(ai, cost, hostCard)) {
             return false;
         }
 
@@ -355,7 +355,7 @@ public final class AbilityFactoryProtection {
              * }
              */
         } else {
-            return AbilityFactoryProtection.protectTgtAI(af, sa, false);
+            return AbilityFactoryProtection.protectTgtAI(ai, af, sa, false);
         }
 
         return false;
@@ -374,7 +374,7 @@ public final class AbilityFactoryProtection {
      *            a boolean.
      * @return a boolean.
      */
-    private static boolean protectTgtAI(final AbilityFactory af, final SpellAbility sa, final boolean mandatory) {
+    private static boolean protectTgtAI(final Player ai, final AbilityFactory af, final SpellAbility sa, final boolean mandatory) {
         if (!mandatory && Singletons.getModel().getGameState().getPhaseHandler().getPhase().isAfter(PhaseType.COMBAT_DECLARE_BLOCKERS_INSTANT_ABILITY)) {
             return false;
         }
@@ -383,7 +383,7 @@ public final class AbilityFactoryProtection {
 
         final Target tgt = sa.getTarget();
         tgt.resetTargets();
-        List<Card> list = AbilityFactoryProtection.getProtectCreatures(af, sa);
+        List<Card> list = AbilityFactoryProtection.getProtectCreatures(ai, af, sa);
 
         list = CardLists.getValidCards(list, tgt.getValidTgts(), sa.getActivatingPlayer(), sa.getSourceCard());
 
@@ -403,18 +403,18 @@ public final class AbilityFactoryProtection {
             // attack/block
             if ((sa.getPayCosts() != null) && sa.getPayCosts().getTap()) {
                 if (Singletons.getModel().getGameState().getPhaseHandler().getPhase().isBefore(PhaseType.COMBAT_DECLARE_ATTACKERS)
-                        && Singletons.getModel().getGameState().getPhaseHandler().isPlayerTurn(AllZone.getComputerPlayer())) {
+                        && Singletons.getModel().getGameState().getPhaseHandler().isPlayerTurn(ai)) {
                     list.remove(sa.getSourceCard());
                 }
                 if (Singletons.getModel().getGameState().getPhaseHandler().getPhase().isBefore(PhaseType.COMBAT_DECLARE_BLOCKERS)
-                        && Singletons.getModel().getGameState().getPhaseHandler().isPlayerTurn(AllZone.getHumanPlayer())) {
+                        && Singletons.getModel().getGameState().getPhaseHandler().isPlayerTurn(ai)) {
                     list.remove(sa.getSourceCard());
                 }
             }
         }
 
         if (list.isEmpty()) {
-            return mandatory && AbilityFactoryProtection.protectMandatoryTarget(af, sa, mandatory);
+            return mandatory && AbilityFactoryProtection.protectMandatoryTarget(ai, af, sa, mandatory);
         }
 
         // Don't target cards that will die.
@@ -433,7 +433,7 @@ public final class AbilityFactoryProtection {
             if (list.isEmpty()) {
                 if ((tgt.getNumTargeted() < tgt.getMinTargets(source, sa)) || (tgt.getNumTargeted() == 0)) {
                     if (mandatory) {
-                        return AbilityFactoryProtection.protectMandatoryTarget(af, sa, mandatory);
+                        return AbilityFactoryProtection.protectMandatoryTarget(ai, af, sa, mandatory);
                     }
 
                     tgt.resetTargets();
@@ -465,7 +465,7 @@ public final class AbilityFactoryProtection {
      *            a boolean.
      * @return a boolean.
      */
-    private static boolean protectMandatoryTarget(final AbilityFactory af, final SpellAbility sa,
+    private static boolean protectMandatoryTarget(final Player ai, final AbilityFactory af, final SpellAbility sa,
             final boolean mandatory) {
         final HashMap<String, String> params = af.getMapParams();
         final Card host = af.getHostCard();
@@ -484,7 +484,7 @@ public final class AbilityFactoryProtection {
             list.remove(c);
         }
 
-        List<Card> pref = CardLists.filterControlledBy(list, AllZone.getComputerPlayer());
+        List<Card> pref = CardLists.filterControlledBy(list, ai);
         pref = CardLists.filter(pref, new Predicate<Card>() {
             @Override
             public boolean apply(final Card c) {
@@ -492,7 +492,7 @@ public final class AbilityFactoryProtection {
                         AbilityFactoryProtection.getProtectionList(host, params));
             }
         });
-        final List<Card> pref2 = CardLists.filterControlledBy(list, AllZone.getComputerPlayer());
+        final List<Card> pref2 = CardLists.filterControlledBy(list, ai);
         pref = CardLists.filter(pref, new Predicate<Card>() {
             @Override
             public boolean apply(final Card c) {
@@ -500,7 +500,7 @@ public final class AbilityFactoryProtection {
                         AbilityFactoryProtection.getProtectionList(host, params));
             }
         });
-        final List<Card> forced = CardLists.filterControlledBy(list, AllZone.getHumanPlayer());
+        final List<Card> forced = CardLists.filterControlledBy(list, ai);
         final Card source = sa.getSourceCard();
 
         while (tgt.getNumTargeted() < tgt.getMaxTargets(source, sa)) {
@@ -585,7 +585,7 @@ public final class AbilityFactoryProtection {
                 return true;
             }
         } else {
-            return AbilityFactoryProtection.protectTgtAI(af, sa, mandatory);
+            return AbilityFactoryProtection.protectTgtAI(ai, af, sa, mandatory);
         }
 
         return true;
@@ -602,7 +602,7 @@ public final class AbilityFactoryProtection {
      *            a {@link forge.card.spellability.SpellAbility} object.
      * @return a boolean.
      */
-    private static boolean protectDrawbackAI(final AbilityFactory af, final SpellAbility sa) {
+    private static boolean protectDrawbackAI(final Player ai, final AbilityFactory af, final SpellAbility sa) {
         final Card host = af.getHostCard();
 
         if ((sa.getTarget() == null) || !sa.getTarget().doesTarget()) {
@@ -610,7 +610,7 @@ public final class AbilityFactoryProtection {
                 // TODO
             }
         } else {
-            return AbilityFactoryProtection.protectTgtAI(af, sa, false);
+            return AbilityFactoryProtection.protectTgtAI(ai, af, sa, false);
         }
 
         return true;
@@ -732,6 +732,7 @@ public final class AbilityFactoryProtection {
         final ArrayList<String> choices = AbilityFactoryProtection.getProtectionList(host, params);
         final ArrayList<String> gains = new ArrayList<String>();
         if (isChoice) {
+            
             if (sa.getActivatingPlayer().isHuman()) {
                 final String choice = GuiChoose.one("Choose a protection", choices);
                 if (null == choice) {
@@ -739,13 +740,14 @@ public final class AbilityFactoryProtection {
                 }
                 gains.add(choice);
             } else {
+                Player ai = sa.getActivatingPlayer();
                 String choice = choices.get(0);
                 if (params.containsKey("AILogic")) {
                     final String logic = params.get("AILogic");
                     if (logic.equals("MostProminentHumanCreatures")) {
-                        List<Card> list = AllZoneUtil.getCreaturesInPlay(AllZone.getHumanPlayer());
+                        List<Card> list = AllZoneUtil.getCreaturesInPlay(ai.getOpponent());
                         if (list.isEmpty()) {
-                            list = CardLists.filterControlledBy(AllZoneUtil.getCardsInGame(), AllZone.getHumanPlayer());
+                            list = CardLists.filterControlledBy(AllZoneUtil.getCardsInGame(), ai.getOpponent());
                         }
                         if (!list.isEmpty()) {
                             choice = CardFactoryUtil.getMostProminentColor(list);
@@ -894,7 +896,7 @@ public final class AbilityFactoryProtection {
 
             @Override
             public boolean canPlayAI() {
-                return AbilityFactoryProtection.protectAllCanPlayAI(af, this);
+                return AbilityFactoryProtection.protectAllCanPlayAI(getActivatingPlayer(), af, this);
             }
 
             @Override
@@ -938,7 +940,7 @@ public final class AbilityFactoryProtection {
 
             @Override
             public boolean canPlayAI() {
-                return AbilityFactoryProtection.protectAllCanPlayAI(af, this);
+                return AbilityFactoryProtection.protectAllCanPlayAI(getActivatingPlayer(), af, this);
             }
 
             @Override
@@ -988,7 +990,7 @@ public final class AbilityFactoryProtection {
 
             @Override
             public boolean canPlayAI() {
-                return AbilityFactoryProtection.protectAllCanPlayAI(af, this);
+                return AbilityFactoryProtection.protectAllCanPlayAI(getActivatingPlayer(), af, this);
             }
 
             @Override
@@ -1027,7 +1029,7 @@ public final class AbilityFactoryProtection {
      *            a {@link forge.card.spellability.SpellAbility} object.
      * @return a boolean.
      */
-    private static boolean protectAllCanPlayAI(final AbilityFactory af, final SpellAbility sa) {
+    private static boolean protectAllCanPlayAI(final Player ai, final AbilityFactory af, final SpellAbility sa) {
         final Card hostCard = af.getHostCard();
         // if there is no target and host card isn't in play, don't activate
         if ((sa.getTarget() == null) && !AllZoneUtil.isCardInPlay(hostCard)) {
@@ -1041,11 +1043,11 @@ public final class AbilityFactoryProtection {
             return false;
         }
 
-        if (!CostUtil.checkDiscardCost(cost, hostCard)) {
+        if (!CostUtil.checkDiscardCost(ai, cost, hostCard)) {
             return false;
         }
 
-        if (!CostUtil.checkSacrificeCost(cost, hostCard)) {
+        if (!CostUtil.checkSacrificeCost(ai, cost, hostCard)) {
             return false;
         }
 

src/main/java/forge/card/abilityfactory/AbilityFactoryPump.java

@@ -243,7 +243,7 @@ public class AbilityFactoryPump {
 
             @Override
             public boolean chkAIDrawback() {
-                return AbilityFactoryPump.this.pumpDrawbackAI(this);
+                return AbilityFactoryPump.this.pumpDrawbackAI(getActivatingPlayer(), this);
             }
 
             @Override
@@ -292,12 +292,12 @@ public class AbilityFactoryPump {
      * @param sa SpellAbility
      * @return true, if successful
      */
-    public boolean containsUsefulKeyword(final ArrayList<String> keywords, final Card card, final SpellAbility sa) {
+    public boolean containsUsefulKeyword(final Player ai, final ArrayList<String> keywords, final Card card, final SpellAbility sa) {
         for (final String keyword : keywords) {
-            if (!sa.getAbilityFactory().isCurse() && isUsefulPumpKeyword(keyword, card, sa)) {
+            if (!sa.getAbilityFactory().isCurse() && isUsefulPumpKeyword(ai, keyword, card, sa)) {
                 return true;
             }
-            if (sa.getAbilityFactory().isCurse() && isUsefulCurseKeyword(keyword, card, sa)) {
+            if (sa.getAbilityFactory().isCurse() && isUsefulCurseKeyword(ai, keyword, card, sa)) {
                 return true;
             }
         }
@@ -314,16 +314,15 @@ public class AbilityFactoryPump {
      * @param sa SpellAbility
      * @return true, if is useful keyword
      */
-    public boolean isUsefulCurseKeyword(final String keyword, final Card card, final SpellAbility sa) {
+    public boolean isUsefulCurseKeyword(final Player ai, final String keyword, final Card card, final SpellAbility sa) {
         final PhaseHandler ph = Singletons.getModel().getGameState().getPhaseHandler();
-        final Player computer = AllZone.getComputerPlayer();
-        final Player human = AllZone.getHumanPlayer();
+        final Player human = ai.getOpponent();
         //int attack = getNumAttack(sa);
         //int defense = getNumDefense(sa);
         if (!CardUtil.isStackingKeyword(keyword) && card.hasKeyword(keyword)) {
             return false;
         } else if (keyword.equals("Defender") || keyword.endsWith("CARDNAME can't attack.")) {
-            if (ph.isPlayerTurn(computer) || !CombatUtil.canAttack(card)
+            if (ph.isPlayerTurn(ai) || !CombatUtil.canAttack(card)
                     || (card.getNetCombatDamage() <= 0)
                     || ph.getPhase().isAfter(PhaseType.COMBAT_DECLARE_ATTACKERS)) {
                 return false;
@@ -341,7 +340,7 @@ public class AbilityFactoryPump {
                     return false;
                 }
 
-                List<Card> attackers = CardLists.filter(AllZone.getComputerPlayer().getCardsIn(ZoneType.Battlefield), CardPredicates.possibleAttackers);
+                List<Card> attackers = CardLists.filter(ai.getCardsIn(ZoneType.Battlefield), CardPredicates.possibleAttackers);
                 if (!CombatUtil.canBlockAtLeastOne(card, attackers)) {
                     return false;
                 }
@@ -352,7 +351,7 @@ public class AbilityFactoryPump {
                 return false;
             }
 
-            List<Card> attackers = CardLists.filter(AllZone.getComputerPlayer().getCardsIn(ZoneType.Battlefield), CardPredicates.possibleAttackers);
+            List<Card> attackers = CardLists.filter(ai.getCardsIn(ZoneType.Battlefield), CardPredicates.possibleAttackers);
             if (!CombatUtil.canBlockAtLeastOne(card, attackers)) {
                 return false;
             }
@@ -363,11 +362,11 @@ public class AbilityFactoryPump {
             }
         } else if (keyword.endsWith("Prevent all combat damage that would be dealt by CARDNAME.")
                 || keyword.endsWith("Prevent all damage that would be dealt by CARDNAME.")) {
-            if (ph.isPlayerTurn(computer) && (!(CombatUtil.canBlock(card) || card.isBlocking())
+            if (ph.isPlayerTurn(ai) && (!(CombatUtil.canBlock(card) || card.isBlocking())
                     || card.getNetCombatDamage() <= 0
                     || ph.getPhase().isAfter(PhaseType.COMBAT_DECLARE_BLOCKERS_INSTANT_ABILITY)
                     || ph.getPhase().isBefore(PhaseType.MAIN1)
-                    || CardLists.getNotKeyword(AllZoneUtil.getCreaturesInPlay(computer), "Defender").isEmpty())) {
+                    || CardLists.getNotKeyword(AllZoneUtil.getCreaturesInPlay(ai), "Defender").isEmpty())) {
                 return false;
             }
             if (ph.isPlayerTurn(human) && (!card.isAttacking()
@@ -375,7 +374,7 @@ public class AbilityFactoryPump {
                 return false;
             }
         } else if (keyword.endsWith("CARDNAME attacks each turn if able.")) {
-            if (ph.isPlayerTurn(computer) || !CombatUtil.canAttack(card) || !CombatUtil.canBeBlocked(card)
+            if (ph.isPlayerTurn(ai) || !CombatUtil.canAttack(card) || !CombatUtil.canBeBlocked(card)
                     || ph.getPhase().isAfter(PhaseType.COMBAT_DECLARE_ATTACKERS)) {
                 return false;
             }
@@ -399,10 +398,9 @@ public class AbilityFactoryPump {
      * @param sa SpellAbility
      * @return true, if is useful keyword
      */
-    public boolean isUsefulPumpKeyword(final String keyword, final Card card, final SpellAbility sa) {
+    public boolean isUsefulPumpKeyword(final Player ai, final String keyword, final Card card, final SpellAbility sa) {
         final PhaseHandler ph = Singletons.getModel().getGameState().getPhaseHandler();
-        final Player computer = AllZone.getComputerPlayer();
-        final Player human = AllZone.getHumanPlayer();
+        final Player opp = ai.getOpponent();
         int attack = getNumAttack(sa);
         //int defense = getNumDefense(sa);
         if (!CardUtil.isStackingKeyword(keyword) && card.hasKeyword(keyword)) {
@@ -410,7 +408,7 @@ public class AbilityFactoryPump {
         }
 
         Predicate<Card> opBlockers = CardPredicates.possibleBlockers(card);
-        List<Card> cardsCanBlock = CardLists.filter(AllZoneUtil.getCreaturesInPlay(human), opBlockers);
+        List<Card> cardsCanBlock = CardLists.filter(AllZoneUtil.getCreaturesInPlay(opp), opBlockers);
 
         final boolean evasive = (keyword.endsWith("Unblockable") || keyword.endsWith("Fear")
                 || keyword.endsWith("Intimidate") || keyword.endsWith("Shadow"));
@@ -418,14 +416,14 @@ public class AbilityFactoryPump {
                 || keyword.contains("Bushido"));
         // give evasive keywords to creatures that can or do attack
         if (evasive) {
-            if (ph.isPlayerTurn(human) || !(CombatUtil.canAttack(card) || card.isAttacking())
+            if (ph.isPlayerTurn(opp) || !(CombatUtil.canAttack(card) || card.isAttacking())
                     || ph.getPhase().isAfter(PhaseType.COMBAT_DECLARE_ATTACKERS_INSTANT_ABILITY)
                     || card.getNetCombatDamage() <= 0
                     || cardsCanBlock.isEmpty()) {
                 return false;
             }
         } else if (keyword.endsWith("Flying")) {
-            if (ph.isPlayerTurn(human)
+            if (ph.isPlayerTurn(opp)
                     && ph.getPhase().equals(PhaseType.COMBAT_DECLARE_ATTACKERS_INSTANT_ABILITY)
                     && !CardLists.getKeyword(AllZone.getCombat().getAttackerList(), "Flying").isEmpty()
                     && !card.hasKeyword("Reach")
@@ -434,27 +432,27 @@ public class AbilityFactoryPump {
                 return true;
             }
             Predicate<Card> flyingOrReach = Predicates.or(CardPredicates.hasKeyword("Flying"), CardPredicates.hasKeyword("Reach"));
-            if (ph.isPlayerTurn(human) || !(CombatUtil.canAttack(card) || card.isAttacking())
+            if (ph.isPlayerTurn(opp) || !(CombatUtil.canAttack(card) || card.isAttacking())
                     || ph.getPhase().isAfter(PhaseType.COMBAT_DECLARE_ATTACKERS_INSTANT_ABILITY)
                     || card.getNetCombatDamage() <= 0 || !Iterables.any(cardsCanBlock, Predicates.not(flyingOrReach))) {
                 return false;
             }
         } else if (keyword.endsWith("Horsemanship")) {
-            if (ph.isPlayerTurn(human)
+            if (ph.isPlayerTurn(opp)
                     && ph.getPhase().equals(PhaseType.COMBAT_DECLARE_ATTACKERS_INSTANT_ABILITY)
                     && !CardLists.getKeyword(AllZone.getCombat().getAttackerList(), "Horsemanship").isEmpty()
                     && CombatUtil.canBlock(card)
                     && CombatUtil.lifeInDanger(AllZone.getCombat())) {
                 return true;
             }
-            if (ph.isPlayerTurn(human) || !(CombatUtil.canAttack(card) || card.isAttacking())
+            if (ph.isPlayerTurn(opp) || !(CombatUtil.canAttack(card) || card.isAttacking())
                     || ph.getPhase().isAfter(PhaseType.COMBAT_DECLARE_ATTACKERS_INSTANT_ABILITY)
                     || card.getNetCombatDamage() <= 0
                     || CardLists.getNotKeyword(cardsCanBlock, "Horsemanship").isEmpty()) {
                 return false;
             }
         } else if (keyword.endsWith("Haste")) {
-            if (!card.hasSickness() || ph.isPlayerTurn(human) || card.isTapped()
+            if (!card.hasSickness() || ph.isPlayerTurn(opp) || card.isTapped()
                     || card.getNetCombatDamage() <= 0
                     || card.hasKeyword("CARDNAME can attack as though it had haste.")
                     || ph.getPhase().isAfter(PhaseType.COMBAT_DECLARE_ATTACKERS)
@@ -465,7 +463,7 @@ public class AbilityFactoryPump {
             return true;
         } else if (keyword.endsWith("Deathtouch")) {
             Combat combat = AllZone.getCombat();
-            if (ph.isPlayerTurn(human) && ph.getPhase().equals(PhaseType.COMBAT_DECLARE_ATTACKERS_INSTANT_ABILITY)) {
+            if (ph.isPlayerTurn(opp) && ph.getPhase().equals(PhaseType.COMBAT_DECLARE_ATTACKERS_INSTANT_ABILITY)) {
                 List<Card> attackers = combat.getAttackers();
                 for (Card attacker : attackers) {
                     if (CombatUtil.canBlock(attacker, card, combat)
@@ -473,9 +471,9 @@ public class AbilityFactoryPump {
                         return true;
                     }
                 }
-            } else if (ph.isPlayerTurn(computer) && ph.getPhase().isBefore(PhaseType.COMBAT_DECLARE_ATTACKERS)
+            } else if (ph.isPlayerTurn(ai) && ph.getPhase().isBefore(PhaseType.COMBAT_DECLARE_ATTACKERS)
                     && CombatUtil.canAttack(card)) {
-                List<Card> blockers = AllZoneUtil.getCreaturesInPlay(human);
+                List<Card> blockers = AllZoneUtil.getCreaturesInPlay(opp);
                 for (Card blocker : blockers) {
                     if (CombatUtil.canBlock(card, blocker, combat)
                             && !CombatUtil.canDestroyBlocker(blocker, card, combat, false)) {
@@ -485,32 +483,32 @@ public class AbilityFactoryPump {
             }
             return false;
         } else if (combatRelevant) {
-            if (ph.isPlayerTurn(human) || !(CombatUtil.canAttack(card) || card.isAttacking())
+            if (ph.isPlayerTurn(opp) || !(CombatUtil.canAttack(card) || card.isAttacking())
                     || ph.getPhase().isAfter(PhaseType.COMBAT_DECLARE_BLOCKERS_INSTANT_ABILITY)
-                    || (AllZoneUtil.getCreaturesInPlay(human).size() < 1)
+                    || (AllZoneUtil.getCreaturesInPlay(opp).size() < 1)
                     || cardsCanBlock.isEmpty()) {
                 return false;
             }
         } else if (keyword.equals("Double Strike")) {
-            if (ph.isPlayerTurn(human) || !(CombatUtil.canAttack(card) || card.isAttacking())
+            if (ph.isPlayerTurn(opp) || !(CombatUtil.canAttack(card) || card.isAttacking())
                     || card.getNetCombatDamage() <= 0
                     || ph.getPhase().isAfter(PhaseType.COMBAT_DECLARE_BLOCKERS_INSTANT_ABILITY)) {
                 return false;
             }
         } else if (keyword.startsWith("Rampage")) {
-            if (ph.isPlayerTurn(human) || !(CombatUtil.canAttack(card) || card.isAttacking())
+            if (ph.isPlayerTurn(opp) || !(CombatUtil.canAttack(card) || card.isAttacking())
                     || ph.getPhase().isAfter(PhaseType.COMBAT_DECLARE_ATTACKERS_INSTANT_ABILITY)
                     || cardsCanBlock.size() < 2) {
                 return false;
             }
         } else if (keyword.startsWith("Flanking")) {
-            if (ph.isPlayerTurn(human) || !(CombatUtil.canAttack(card) || card.isAttacking())
+            if (ph.isPlayerTurn(opp) || !(CombatUtil.canAttack(card) || card.isAttacking())
                     || ph.getPhase().isAfter(PhaseType.COMBAT_DECLARE_ATTACKERS_INSTANT_ABILITY)
                     || CardLists.getNotKeyword(cardsCanBlock, "Flanking").isEmpty()) {
                 return false;
             }
         } else if (keyword.startsWith("Trample")) {
-            if (ph.isPlayerTurn(human) || !(CombatUtil.canAttack(card) || card.isAttacking())
+            if (ph.isPlayerTurn(opp) || !(CombatUtil.canAttack(card) || card.isAttacking())
                     || !CombatUtil.canBeBlocked(card)
                     || ph.getPhase().isAfter(PhaseType.COMBAT_DECLARE_ATTACKERS_INSTANT_ABILITY)
                     || cardsCanBlock.isEmpty()
@@ -524,7 +522,7 @@ public class AbilityFactoryPump {
             if (card.isBlocking()) {
                 return true;
             }
-            if ((ph.isPlayerTurn(human))
+            if ((ph.isPlayerTurn(opp))
                     || !(CombatUtil.canAttack(card) || card.isAttacking())
                     || ph.getPhase().isAfter(PhaseType.COMBAT_DECLARE_BLOCKERS_INSTANT_ABILITY)) {
                 return false;
@@ -548,13 +546,13 @@ public class AbilityFactoryPump {
                 return false;
             }
         } else if (keyword.equals("Vigilance")) {
-            if (ph.isPlayerTurn(human) || !CombatUtil.canAttack(card)
+            if (ph.isPlayerTurn(opp) || !CombatUtil.canAttack(card)
                     || ph.getPhase().isAfter(PhaseType.COMBAT_DECLARE_ATTACKERS)
-                    || CardLists.getNotKeyword(AllZoneUtil.getCreaturesInPlay(human), "Defender").size() < 1) {
+                    || CardLists.getNotKeyword(AllZoneUtil.getCreaturesInPlay(opp), "Defender").size() < 1) {
                 return false;
             }
         } else if (keyword.equals("Reach")) {
-            if (ph.isPlayerTurn(computer)
+            if (ph.isPlayerTurn(ai)
                     || !ph.getPhase().equals(PhaseType.COMBAT_DECLARE_ATTACKERS_INSTANT_ABILITY)
                     || CardLists.getKeyword(AllZone.getCombat().getAttackerList(), "Flying").isEmpty()
                     || card.hasKeyword("Flying")
@@ -562,7 +560,7 @@ public class AbilityFactoryPump {
                 return false;
             }
         } else if (keyword.endsWith("CARDNAME can block an additional creature.")) {
-            if (ph.isPlayerTurn(computer)
+            if (ph.isPlayerTurn(ai)
                     || !ph.getPhase().equals(PhaseType.COMBAT_DECLARE_ATTACKERS_INSTANT_ABILITY)) {
                 return false;
             }
@@ -584,34 +582,34 @@ public class AbilityFactoryPump {
                 return false;
             }
         } else if (keyword.equals("Islandwalk")) {
-            if (ph.isPlayerTurn(human) || !(CombatUtil.canAttack(card) || card.isAttacking())
+            if (ph.isPlayerTurn(opp) || !(CombatUtil.canAttack(card) || card.isAttacking())
                     || ph.getPhase().isAfter(PhaseType.COMBAT_DECLARE_ATTACKERS_INSTANT_ABILITY)
                     || card.getNetCombatDamage() <= 0
-                    || CardLists.getType(AllZoneUtil.getPlayerLandsInPlay(human), "Island").isEmpty()
+                    || CardLists.getType(AllZoneUtil.getPlayerLandsInPlay(opp), "Island").isEmpty()
                     || cardsCanBlock.isEmpty()) {
                 return false;
             }
         } else if (keyword.equals("Swampwalk")) {
-            if (ph.isPlayerTurn(human) || !(CombatUtil.canAttack(card) || card.isAttacking())
+            if (ph.isPlayerTurn(opp) || !(CombatUtil.canAttack(card) || card.isAttacking())
                     || ph.getPhase().isAfter(PhaseType.COMBAT_DECLARE_ATTACKERS_INSTANT_ABILITY)
                     || card.getNetCombatDamage() <= 0
-                    || CardLists.getType(AllZoneUtil.getPlayerLandsInPlay(human), "Swamp").isEmpty()
+                    || CardLists.getType(AllZoneUtil.getPlayerLandsInPlay(opp), "Swamp").isEmpty()
                     || cardsCanBlock.isEmpty()) {
                 return false;
             }
         } else if (keyword.equals("Mountainwalk")) {
-            if (ph.isPlayerTurn(human) || !(CombatUtil.canAttack(card) || card.isAttacking())
+            if (ph.isPlayerTurn(opp) || !(CombatUtil.canAttack(card) || card.isAttacking())
                     || ph.getPhase().isAfter(PhaseType.COMBAT_DECLARE_ATTACKERS_INSTANT_ABILITY)
                     || card.getNetCombatDamage() <= 0
-                    || CardLists.getType(AllZoneUtil.getPlayerLandsInPlay(human), "Mountain").isEmpty()
+                    || CardLists.getType(AllZoneUtil.getPlayerLandsInPlay(opp), "Mountain").isEmpty()
                     || cardsCanBlock.isEmpty()) {
                 return false;
             }
         } else if (keyword.equals("Forestwalk")) {
-            if (ph.isPlayerTurn(human) || !(CombatUtil.canAttack(card) || card.isAttacking())
+            if (ph.isPlayerTurn(opp) || !(CombatUtil.canAttack(card) || card.isAttacking())
                     || ph.getPhase().isAfter(PhaseType.COMBAT_DECLARE_ATTACKERS_INSTANT_ABILITY)
                     || card.getNetCombatDamage() <= 0
-                    || CardLists.getType(AllZoneUtil.getPlayerLandsInPlay(human), "Forest").isEmpty()
+                    || CardLists.getType(AllZoneUtil.getPlayerLandsInPlay(opp), "Forest").isEmpty()
                     || cardsCanBlock.isEmpty()) {
                 return false;
             }
@@ -619,7 +617,7 @@ public class AbilityFactoryPump {
         return true;
     }
 
-    private boolean shouldPumpCard(final SpellAbility sa, final Card c) {
+    private boolean shouldPumpCard(final Player ai, final SpellAbility sa, final Card c) {
         int attack = getNumAttack(sa);
         int defense = getNumDefense(sa);
         PhaseHandler phase = Singletons.getModel().getGameState().getPhaseHandler();
@@ -632,13 +630,13 @@ public class AbilityFactoryPump {
             return false;
         }
 
-        if (containsUsefulKeyword(keywords, c, sa)) {
+        if (containsUsefulKeyword(ai, keywords, c, sa)) {
             return true;
         }
 
         // will the creature attack (only relevant for sorcery speed)?
         if (phase.getPhase().isBefore(PhaseType.COMBAT_DECLARE_ATTACKERS)
-                && phase.isPlayerTurn(AllZone.getComputerPlayer())
+                && phase.isPlayerTurn(ai)
                 && attack > 0
                 && CardFactoryUtil.doesCreatureAttackAI(c)) {
             return true;
@@ -681,7 +679,7 @@ public class AbilityFactoryPump {
         }
 
         if (phase.getPhase().equals(PhaseType.COMBAT_DECLARE_BLOCKERS_INSTANT_ABILITY)
-                && phase.isPlayerTurn(AllZone.getHumanPlayer())
+                && phase.isPlayerTurn(ai.getOpponent())
                 && c.isBlocking()
                 && defense > 0
                 && attackerHasTrample
@@ -699,13 +697,13 @@ public class AbilityFactoryPump {
      * 
      * @return a {@link forge.CardList} object.
      */
-    private List<Card> getPumpCreatures(final SpellAbility sa) {
+    private List<Card> getPumpCreatures(final Player ai, final SpellAbility sa) {
 
-        List<Card> list = AllZoneUtil.getCreaturesInPlay(AllZone.getComputerPlayer());
+        List<Card> list = AllZoneUtil.getCreaturesInPlay(ai);
         list = CardLists.filter(list, new Predicate<Card>() {
             @Override
             public boolean apply(final Card c) {
-                return shouldPumpCard(sa, c);
+                return shouldPumpCard(ai, sa, c);
             }
         });
         return list;
@@ -724,8 +722,8 @@ public class AbilityFactoryPump {
      *            a int.
      * @return a {@link forge.CardList} object.
      */
-    private List<Card> getCurseCreatures(final SpellAbility sa, final int defense, final int attack) {
-        List<Card> list = AllZoneUtil.getCreaturesInPlay(AllZone.getHumanPlayer());
+    private List<Card> getCurseCreatures(final Player ai, final SpellAbility sa, final int defense, final int attack) {
+        List<Card> list = AllZoneUtil.getCreaturesInPlay(ai.getOpponent());
         list = CardLists.getTargetableCards(list, sa);
         if ((defense < 0) && !list.isEmpty()) { // with spells that give -X/-X,
                                                 // compi will try to destroy a
@@ -760,7 +758,7 @@ public class AbilityFactoryPump {
                             if (!c.isAttacking()) {
                                 return false;
                             }
-                            if (c.getNetAttack() > 0 && AllZone.getComputerPlayer().getLife() < 5) {
+                            if (c.getNetAttack() > 0 && ai.getLife() < 5) {
                                 return true;
                             }
                             //Don't waste a -7/-0 spell on a 1/1 creature
@@ -784,7 +782,7 @@ public class AbilityFactoryPump {
                 list = CardLists.filter(list, new Predicate<Card>() {
                     @Override
                     public boolean apply(final Card c) {
-                        return containsUsefulKeyword(keywords, c, sa);
+                        return containsUsefulKeyword(ai, keywords, c, sa);
                     }
                 });
             } else {
@@ -824,11 +822,11 @@ public class AbilityFactoryPump {
             return false;
         }
 
-        if (!CostUtil.checkDiscardCost(cost, sa.getSourceCard())) {
+        if (!CostUtil.checkDiscardCost(ai, cost, sa.getSourceCard())) {
             return false;
         }
 
-        if (!CostUtil.checkCreatureSacrificeCost(cost, sa.getSourceCard())) {
+        if (!CostUtil.checkCreatureSacrificeCost(ai, cost, sa.getSourceCard())) {
             return false;
         }
 
@@ -837,10 +835,10 @@ public class AbilityFactoryPump {
         }
 
         if (AllZone.getStack().isEmpty() && CostUtil.hasTapCost(cost, sa.getSourceCard())) {
-                if (ph.getPhase().isBefore(PhaseType.COMBAT_DECLARE_ATTACKERS) && ph.isPlayerTurn(AllZone.getComputerPlayer())) {
+                if (ph.getPhase().isBefore(PhaseType.COMBAT_DECLARE_ATTACKERS) && ph.isPlayerTurn(ai)) {
                     return false;
                 }
-                if (ph.getPhase().isBefore(PhaseType.COMBAT_DECLARE_BLOCKERS) && ph.isPlayerTurn(AllZone.getHumanPlayer())) {
+                if (ph.getPhase().isBefore(PhaseType.COMBAT_DECLARE_BLOCKERS) && ph.isPlayerTurn(ai.getOpponent())) {
                     return false;
                 }
         }
@@ -924,20 +922,20 @@ public class AbilityFactoryPump {
                         return false;
                     }
 
-                    if (!containsUsefulKeyword(this.keywords, card, sa)) {
+                    if (!containsUsefulKeyword(ai, this.keywords, card, sa)) {
                         continue;
                     }
 
                     return r.nextFloat() <= Math.pow(.9, activations);
                 }
-                if (shouldPumpCard(sa, card)) {
+                if (shouldPumpCard(ai, sa, card)) {
                     return r.nextFloat() <= Math.pow(.9, activations);
                 }
             }
             return false;
         }
         //Targeted
-        if (!this.pumpTgtAI(sa, defense, attack, false)) {
+        if (!this.pumpTgtAI(ai, sa, defense, attack, false)) {
             return false;
         }
 
@@ -964,7 +962,7 @@ public class AbilityFactoryPump {
      *            a boolean.
      * @return a boolean.
      */
-    private boolean pumpTgtAI(final SpellAbility sa, final int defense, final int attack, final boolean mandatory) {
+    private boolean pumpTgtAI(final Player ai, final SpellAbility sa, final int defense, final int attack, final boolean mandatory) {
         if (!mandatory
                 && !sa.isTrigger()
                 && Singletons.getModel().getGameState().getPhaseHandler().getPhase().isAfter(PhaseType.COMBAT_DECLARE_BLOCKERS_INSTANT_ABILITY)
@@ -973,6 +971,7 @@ public class AbilityFactoryPump {
             return false;
         }
 
+        final Player opp = ai.getOpponent();
         final Target tgt = sa.getTarget();
         tgt.resetTargets();
         List<Card> list = new ArrayList<Card>();
@@ -989,20 +988,20 @@ public class AbilityFactoryPump {
                 }
             }
         } else if (this.abilityFactory.isCurse()) {
-            if (sa.canTarget(AllZone.getHumanPlayer())) {
-                tgt.addTarget(AllZone.getHumanPlayer());
+            if (sa.canTarget(opp)) {
+                tgt.addTarget(opp);
                 return true;
             }
-            list = this.getCurseCreatures(sa, defense, attack);
+            list = this.getCurseCreatures(ai, sa, defense, attack);
         } else {
             if (!tgt.canTgtCreature()) {
                 ZoneType zone = tgt.getZone().get(0);
                 list = AllZoneUtil.getCardsIn(zone);
             } else {
-                list = this.getPumpCreatures(sa);
+                list = this.getPumpCreatures(ai, sa);
             }
-            if (sa.canTarget(AllZone.getComputerPlayer())) {
-                tgt.addTarget(AllZone.getComputerPlayer());
+            if (sa.canTarget(ai)) {
+                tgt.addTarget(ai);
                 return true;
             }
         }
@@ -1013,18 +1012,18 @@ public class AbilityFactoryPump {
             // attack/block
             if ((sa.getPayCosts() != null) && sa.getPayCosts().getTap()) {
                 if (Singletons.getModel().getGameState().getPhaseHandler().getPhase().isBefore(PhaseType.COMBAT_DECLARE_ATTACKERS)
-                        && Singletons.getModel().getGameState().getPhaseHandler().isPlayerTurn(AllZone.getComputerPlayer())) {
+                        && Singletons.getModel().getGameState().getPhaseHandler().isPlayerTurn(ai)) {
                     list.remove(sa.getSourceCard());
                 }
                 if (Singletons.getModel().getGameState().getPhaseHandler().getPhase().isBefore(PhaseType.COMBAT_DECLARE_BLOCKERS)
-                        && Singletons.getModel().getGameState().getPhaseHandler().isPlayerTurn(AllZone.getHumanPlayer())) {
+                        && Singletons.getModel().getGameState().getPhaseHandler().isPlayerTurn(opp)) {
                     list.remove(sa.getSourceCard());
                 }
             }
         }
 
         if (list.isEmpty()) {
-            return mandatory && this.pumpMandatoryTarget(this.abilityFactory, sa, mandatory);
+            return mandatory && this.pumpMandatoryTarget(ai, this.abilityFactory, sa, mandatory);
         }
 
         if (!this.abilityFactory.isCurse()) {
@@ -1044,7 +1043,7 @@ public class AbilityFactoryPump {
             if (list.isEmpty()) {
                 if ((tgt.getNumTargeted() < tgt.getMinTargets(sa.getSourceCard(), sa)) || (tgt.getNumTargeted() == 0)) {
                     if (mandatory) {
-                        return this.pumpMandatoryTarget(this.abilityFactory, sa, mandatory);
+                        return this.pumpMandatoryTarget(ai, this.abilityFactory, sa, mandatory);
                     }
 
                     tgt.resetTargets();
@@ -1076,9 +1075,10 @@ public class AbilityFactoryPump {
      *            a boolean.
      * @return a boolean.
      */
-    private boolean pumpMandatoryTarget(final AbilityFactory af, final SpellAbility sa, final boolean mandatory) {
+    private boolean pumpMandatoryTarget(final Player ai, final AbilityFactory af, final SpellAbility sa, final boolean mandatory) {
         List<Card> list = AllZoneUtil.getCardsIn(ZoneType.Battlefield);
         final Target tgt = sa.getTarget();
+        final Player opp = ai.getOpponent();
         list = CardLists.getValidCards(list, tgt.getValidTgts(), sa.getActivatingPlayer(), sa.getSourceCard());
         list = CardLists.getTargetableCards(list, sa);
 
@@ -1097,11 +1097,11 @@ public class AbilityFactoryPump {
         final Card source = sa.getSourceCard();
 
         if (af.isCurse()) {
-            pref = CardLists.filterControlledBy(list, AllZone.getHumanPlayer());
-            forced = CardLists.filterControlledBy(list, AllZone.getComputerPlayer());
+            pref = CardLists.filterControlledBy(list, opp);
+            forced = CardLists.filterControlledBy(list, ai);
         } else {
-            pref = CardLists.filterControlledBy(list, AllZone.getComputerPlayer());
-            forced = CardLists.filterControlledBy(list, AllZone.getHumanPlayer());
+            pref = CardLists.filterControlledBy(list, ai);
+            forced = CardLists.filterControlledBy(list, opp);
         }
 
         while (tgt.getNumTargeted() < tgt.getMaxTargets(source, sa)) {
@@ -1213,7 +1213,7 @@ public class AbilityFactoryPump {
                 return true;
             }
         } else {
-            return this.pumpTgtAI(sa, defense, attack, mandatory);
+            return this.pumpTgtAI(ai, sa, defense, attack, mandatory);
         }
 
         return true;
@@ -1228,7 +1228,7 @@ public class AbilityFactoryPump {
      *            a {@link forge.card.spellability.SpellAbility} object.
      * @return a boolean.
      */
-    private boolean pumpDrawbackAI(final SpellAbility sa) {
+    private boolean pumpDrawbackAI(final Player ai, final SpellAbility sa) {
         final Card source = sa.getSourceCard();
         int defense;
         if (this.numDefense.contains("X") && source.getSVar("X").equals("Count$xPaid")) {
@@ -1256,7 +1256,7 @@ public class AbilityFactoryPump {
             }
         } else {
             //Targeted
-            if (!this.pumpTgtAI(sa, defense, attack, false)) {
+            if (!this.pumpTgtAI(ai, sa, defense, attack, false)) {
                 return false;
             }
 
@@ -1589,7 +1589,7 @@ public class AbilityFactoryPump {
 
             @Override
             public boolean canPlayAI() {
-                return AbilityFactoryPump.this.pumpAllCanPlayAI(this);
+                return AbilityFactoryPump.this.pumpAllCanPlayAI(getActivatingPlayer(), this);
             }
 
             @Override
@@ -1628,7 +1628,7 @@ public class AbilityFactoryPump {
 
             @Override
             public boolean canPlayAI() {
-                return AbilityFactoryPump.this.pumpAllCanPlayAI(this);
+                return AbilityFactoryPump.this.pumpAllCanPlayAI(getActivatingPlayer(), this);
             }
 
             @Override
@@ -1680,7 +1680,7 @@ public class AbilityFactoryPump {
 
             @Override
             public boolean canPlayAI() {
-                return AbilityFactoryPump.this.pumpAllCanPlayAI(this);
+                return AbilityFactoryPump.this.pumpAllCanPlayAI(getActivatingPlayer(), this);
             }
 
             @Override
@@ -1708,7 +1708,7 @@ public class AbilityFactoryPump {
      *            a {@link forge.card.spellability.SpellAbility} object.
      * @return a boolean.
      */
-    private boolean pumpAllCanPlayAI(final SpellAbility sa) {
+    private boolean pumpAllCanPlayAI(final Player ai, final SpellAbility sa) {
         String valid = "";
         final Random r = MyRandom.getRandom();
         final Card source = sa.getSourceCard();
@@ -1724,15 +1724,16 @@ public class AbilityFactoryPump {
             valid = this.params.get("ValidCards");
         }
 
-        List<Card> comp = AllZone.getComputerPlayer().getCardsIn(ZoneType.Battlefield);
+        final Player opp = ai.getOpponent();
+        List<Card> comp = ai.getCardsIn(ZoneType.Battlefield);
         comp = CardLists.getValidCards(comp, valid, source.getController(), source);
-        List<Card> human = AllZone.getHumanPlayer().getCardsIn(ZoneType.Battlefield);
+        List<Card> human = opp.getCardsIn(ZoneType.Battlefield);
         human = CardLists.getValidCards(human, valid, source.getController(), source);
 
         final Target tgt = sa.getTarget();
-        if (tgt != null && sa.canTarget(AllZone.getHumanPlayer()) && params.containsKey("IsCurse")) {
+        if (tgt != null && sa.canTarget(opp) && params.containsKey("IsCurse")) {
             tgt.resetTargets();
-            sa.getTarget().addTarget(AllZone.getHumanPlayer());
+            sa.getTarget().addTarget(opp);
             comp = new ArrayList<Card>();
         }
 
@@ -1775,7 +1776,7 @@ public class AbilityFactoryPump {
         comp = CardLists.filter(comp, new Predicate<Card>() {
             @Override
             public boolean apply(final Card c) {
-                if (power <= 0 && !containsUsefulKeyword(keywords, c, sa)) {
+                if (power <= 0 && !containsUsefulKeyword(ai, keywords, c, sa)) {
                     return false;
                 }
                 if (phase.equals(PhaseType.COMBAT_DECLARE_ATTACKERS_INSTANT_ABILITY) && c.isAttacking()) {

src/main/java/forge/card/abilityfactory/AbilityFactoryRegenerate.java

@@ -89,7 +89,7 @@ public class AbilityFactoryRegenerate {
 
             @Override
             public boolean canPlayAI() {
-                return AbilityFactoryRegenerate.regenerateCanPlayAI(af, this);
+                return AbilityFactoryRegenerate.regenerateCanPlayAI(getActivatingPlayer(), af, this);
             }
 
             @Override
@@ -128,7 +128,7 @@ public class AbilityFactoryRegenerate {
 
             @Override
             public boolean canPlayAI() {
-                return AbilityFactoryRegenerate.regenerateCanPlayAI(af, this);
+                return AbilityFactoryRegenerate.regenerateCanPlayAI(getActivatingPlayer(), af, this);
             }
 
             @Override
@@ -263,7 +263,7 @@ public class AbilityFactoryRegenerate {
      *            a {@link forge.card.spellability.SpellAbility} object.
      * @return a boolean.
      */
-    private static boolean regenerateCanPlayAI(final AbilityFactory af, final SpellAbility sa) {
+    private static boolean regenerateCanPlayAI(final Player ai, final AbilityFactory af, final SpellAbility sa) {
         final HashMap<String, String> params = af.getMapParams();
         final Card hostCard = af.getHostCard();
         boolean chance = false;
@@ -274,11 +274,11 @@ public class AbilityFactoryRegenerate {
                 return false;
             }
 
-            if (!CostUtil.checkSacrificeCost(abCost, hostCard)) {
+            if (!CostUtil.checkSacrificeCost(ai, abCost, hostCard)) {
                 return false;
             }
 
-            if (!CostUtil.checkCreatureSacrificeCost(abCost, hostCard)) {
+            if (!CostUtil.checkCreatureSacrificeCost(ai, abCost, hostCard)) {
                 return false;
             }
         }
@@ -316,8 +316,8 @@ public class AbilityFactoryRegenerate {
         } else {
             tgt.resetTargets();
             // filter AIs battlefield by what I can target
-            List<Card> targetables = AllZone.getComputerPlayer().getCardsIn(ZoneType.Battlefield);
-            targetables = CardLists.getValidCards(targetables, tgt.getValidTgts(), AllZone.getComputerPlayer(), hostCard);
+            List<Card> targetables = ai.getCardsIn(ZoneType.Battlefield);
+            targetables = CardLists.getValidCards(targetables, tgt.getValidTgts(), ai, hostCard);
 
             if (targetables.size() == 0) {
                 return false;
@@ -390,7 +390,7 @@ public class AbilityFactoryRegenerate {
             // If there's no target on the trigger, just say yes.
             chance = true;
         } else {
-            chance = AbilityFactoryRegenerate.regenMandatoryTarget(af, sa, mandatory);
+            chance = AbilityFactoryRegenerate.regenMandatoryTarget(ai, af, sa, mandatory);
         }
 
         final AbilitySub subAb = sa.getSubAbility();
@@ -414,14 +414,14 @@ public class AbilityFactoryRegenerate {
      *            a boolean.
      * @return a boolean.
      */
-    private static boolean regenMandatoryTarget(final AbilityFactory af, final SpellAbility sa, final boolean mandatory) {
+    private static boolean regenMandatoryTarget(final Player ai, final AbilityFactory af, final SpellAbility sa, final boolean mandatory) {
         final Card hostCard = af.getHostCard();
         final Target tgt = sa.getTarget();
         tgt.resetTargets();
         // filter AIs battlefield by what I can target
         List<Card> targetables = AllZoneUtil.getCardsIn(ZoneType.Battlefield);
-        targetables = CardLists.getValidCards(targetables, tgt.getValidTgts(), AllZone.getComputerPlayer(), hostCard);
-        final List<Card> compTargetables = CardLists.filterControlledBy(targetables, AllZone.getComputerPlayer());
+        targetables = CardLists.getValidCards(targetables, tgt.getValidTgts(), ai, hostCard);
+        final List<Card> compTargetables = CardLists.filterControlledBy(targetables, ai);
 
         if (targetables.size() == 0) {
             return false;
@@ -543,7 +543,7 @@ public class AbilityFactoryRegenerate {
 
             @Override
             public boolean canPlayAI() {
-                return AbilityFactoryRegenerate.regenerateAllCanPlayAI(af, this);
+                return AbilityFactoryRegenerate.regenerateAllCanPlayAI(getActivatingPlayer(), af, this);
             }
 
             @Override
@@ -582,7 +582,7 @@ public class AbilityFactoryRegenerate {
 
             @Override
             public boolean canPlayAI() {
-                return AbilityFactoryRegenerate.regenerateAllCanPlayAI(af, this);
+                return AbilityFactoryRegenerate.regenerateAllCanPlayAI(getActivatingPlayer(), af, this);
             }
 
             @Override
@@ -701,18 +701,18 @@ public class AbilityFactoryRegenerate {
      *            a {@link forge.card.spellability.SpellAbility} object.
      * @return a boolean.
      */
-    private static boolean regenerateAllCanPlayAI(final AbilityFactory af, final SpellAbility sa) {
+    private static boolean regenerateAllCanPlayAI(final Player ai, final AbilityFactory af, final SpellAbility sa) {
         final HashMap<String, String> params = af.getMapParams();
         final Card hostCard = af.getHostCard();
         boolean chance = false;
         final Cost abCost = af.getAbCost();
         if (abCost != null) {
             // AI currently disabled for these costs
-            if (!CostUtil.checkSacrificeCost(abCost, hostCard)) {
+            if (!CostUtil.checkSacrificeCost(ai, abCost, hostCard)) {
                 return false;
             }
 
-            if (!CostUtil.checkCreatureSacrificeCost(abCost, hostCard)) {
+            if (!CostUtil.checkCreatureSacrificeCost(ai, abCost, hostCard)) {
                 return false;
             }
 
@@ -730,7 +730,7 @@ public class AbilityFactoryRegenerate {
 
         List<Card> list = AllZoneUtil.getCardsIn(ZoneType.Battlefield);
         list = CardLists.getValidCards(list, valid.split(","), hostCard.getController(), hostCard);
-        list = CardLists.filter(list, CardPredicates.isController(AllZone.getComputerPlayer()));
+        list = CardLists.filter(list, CardPredicates.isController(ai));
 
         if (list.size() == 0) {
             return false;

src/main/java/forge/card/abilityfactory/AbilityFactoryReveal.java

@@ -1293,11 +1293,11 @@ public final class AbilityFactoryReveal {
                 return false;
             }
 
-            if (!CostUtil.checkDiscardCost(abCost, source)) {
+            if (!CostUtil.checkDiscardCost(ai, abCost, source)) {
                 return false;
             }
 
-            if (!CostUtil.checkSacrificeCost(abCost, source)) {
+            if (!CostUtil.checkSacrificeCost(ai, abCost, source)) {
                 return false;
             }
 
@@ -2279,11 +2279,11 @@ public final class AbilityFactoryReveal {
                 return false;
             }
 
-            if (!CostUtil.checkDiscardCost(abCost, source)) {
+            if (!CostUtil.checkDiscardCost(ai, abCost, source)) {
                 return false;
             }
 
-            if (!CostUtil.checkSacrificeCost(abCost, source)) {
+            if (!CostUtil.checkSacrificeCost(ai, abCost, source)) {
                 return false;
             }
 

src/main/java/forge/card/abilityfactory/AbilityFactoryToken.java

@@ -359,11 +359,11 @@ public class AbilityFactoryToken extends AbilityFactory {
                 return false;
             }
 
-            if (!CostUtil.checkDiscardCost(cost, source)) {
+            if (!CostUtil.checkDiscardCost(ai, cost, source)) {
                 return false;
             }
 
-            if (!CostUtil.checkSacrificeCost(cost, source)) {
+            if (!CostUtil.checkSacrificeCost(ai, cost, source)) {
                 return false;
             }
 

src/main/java/forge/card/abilityfactory/AbilityFactoryTurns.java

@@ -81,7 +81,7 @@ public class AbilityFactoryTurns {
 
             @Override
             public boolean canPlayAI() {
-                return AbilityFactoryTurns.addTurnCanPlayAI(af, this);
+                return AbilityFactoryTurns.addTurnCanPlayAI(getActivatingPlayer(), af, this);
             }
 
             @Override
@@ -119,7 +119,7 @@ public class AbilityFactoryTurns {
 
             @Override
             public boolean canPlayAI() {
-                return AbilityFactoryTurns.addTurnCanPlayAI(af, this);
+                return AbilityFactoryTurns.addTurnCanPlayAI(getActivatingPlayer(), af, this);
             }
 
             @Override
@@ -130,7 +130,7 @@ public class AbilityFactoryTurns {
             @Override
             public boolean canPlayFromEffectAI(final boolean mandatory, final boolean withOutManaCost) {
                 if (withOutManaCost) {
-                    return AbilityFactoryTurns.addTurnTriggerAINoCost(af, this, mandatory);
+                    return AbilityFactoryTurns.addTurnTriggerAINoCost(getActivatingPlayer(), af, this, mandatory);
                 }
                 return AbilityFactoryTurns.addTurnTriggerAI(getActivatingPlayer(), af, this, mandatory);
             }
@@ -255,8 +255,8 @@ public class AbilityFactoryTurns {
      *            a {@link forge.card.spellability.SpellAbility} object.
      * @return a boolean.
      */
-    private static boolean addTurnCanPlayAI(final AbilityFactory af, final SpellAbility sa) {
-        return AbilityFactoryTurns.addTurnTriggerAINoCost(af, sa, false);
+    private static boolean addTurnCanPlayAI(final Player ai, final AbilityFactory af, final SpellAbility sa) {
+        return AbilityFactoryTurns.addTurnTriggerAINoCost(ai, af, sa, false);
     }
 
     /**
@@ -276,7 +276,7 @@ public class AbilityFactoryTurns {
         if (!ComputerUtil.canPayCost(sa, ai) && !mandatory) {
             return false;
         }
-        return addTurnTriggerAINoCost(af, sa, mandatory);
+        return addTurnTriggerAINoCost(ai, af, sa, mandatory);
     }
 
     /**
@@ -292,18 +292,19 @@ public class AbilityFactoryTurns {
      *            a boolean.
      * @return a boolean.
      */
-    private static boolean addTurnTriggerAINoCost(final AbilityFactory af, final SpellAbility sa, final boolean mandatory) {
+    private static boolean addTurnTriggerAINoCost(final Player ai, final AbilityFactory af, final SpellAbility sa, final boolean mandatory) {
 
         final HashMap<String, String> params = af.getMapParams();
 
+        final Player opp = ai.getOpponent();
         final Target tgt = sa.getTarget();
 
         if (sa.getTarget() != null) {
             tgt.resetTargets();
-            if (sa.canTarget(AllZone.getComputerPlayer())) {
-                sa.getTarget().addTarget(AllZone.getComputerPlayer());
-            } else if (mandatory && sa.canTarget(AllZone.getHumanPlayer())) {
-                sa.getTarget().addTarget(AllZone.getHumanPlayer());
+            if (sa.canTarget(ai)) {
+                sa.getTarget().addTarget(ai);
+            } else if (mandatory && sa.canTarget(opp)) {
+                sa.getTarget().addTarget(opp);
             } else {
                 return false;
             }
@@ -520,10 +521,10 @@ public class AbilityFactoryTurns {
 
         // Update observers
         AllZone.getStack().updateObservers();
-        AllZone.getComputerPlayer().updateObservers();
-        AllZone.getHumanPlayer().updateObservers();
-        AllZone.getComputerPlayer().updateLabelObservers();
-        AllZone.getHumanPlayer().updateLabelObservers();
+        for (Player p : AllZone.getPlayersInGame()) {
+            p.updateObservers();
+            p.updateLabelObservers();
+        }
     }
 
 } // end class AbilityFactory_Turns

src/main/java/forge/card/abilityfactory/AbilityFactoryZoneAffecting.java

@@ -25,7 +25,6 @@ import java.util.Iterator;
 import java.util.List;
 import java.util.Random;
 
-import forge.AllZone;
 import forge.Card;
 
 import forge.CardLists;
@@ -301,7 +300,7 @@ public class AbilityFactoryZoneAffecting {
 
         if (abCost != null) {
             // AI currently disabled for these costs
-            if (!CostUtil.checkCreatureSacrificeCost(abCost, source)) {
+            if (!CostUtil.checkCreatureSacrificeCost(ai, abCost, source)) {
                 return false;
             }
 
@@ -309,14 +308,14 @@ public class AbilityFactoryZoneAffecting {
                 return false;
             }
 
-            if (!CostUtil.checkDiscardCost(abCost, source)) {
+            if (!CostUtil.checkDiscardCost(ai, abCost, source)) {
                 for (final CostPart part : abCost.getCostParts()) {
                     if (part instanceof CostDiscard) {
                         CostDiscard cd = (CostDiscard) part;
-                        cd.decideAIPayment(sa, sa.getSourceCard(), null);
+                        cd.decideAIPayment(ai, sa, sa.getSourceCard(), null);
                         List<Card> discards = cd.getList();
                         for (Card discard : discards) {
-                            if (!ComputerUtil.isWorseThanDraw(discard)) {
+                            if (!ComputerUtil.isWorseThanDraw(ai, discard)) {
                                 return false;
                             }
                         }
@@ -879,11 +878,11 @@ public class AbilityFactoryZoneAffecting {
                 return false;
             }
 
-            if (!CostUtil.checkDiscardCost(abCost, source)) {
+            if (!CostUtil.checkDiscardCost(ai, abCost, source)) {
                 return false;
             }
 
-            if (!CostUtil.checkSacrificeCost(abCost, source)) {
+            if (!CostUtil.checkSacrificeCost(ai, abCost, source)) {
                 return false;
             }
 
@@ -924,8 +923,7 @@ public class AbilityFactoryZoneAffecting {
 
         if (params.get("NumCards").equals("X") && source.getSVar("X").startsWith("Count$xPaid")) {
             // Set PayX here to maximum value.
-            final int cardsToDiscard = Math.min(ComputerUtil.determineLeftoverMana(sa, ai), AllZone.getHumanPlayer()
-                    .getCardsIn(ZoneType.Library).size());
+            final int cardsToDiscard = Math.min(ComputerUtil.determineLeftoverMana(sa, ai), ai.getOpponent().getCardsIn(ZoneType.Library).size());
             source.setSVar("PayX", Integer.toString(cardsToDiscard));
             if (cardsToDiscard <= 0) {
                 return false;
@@ -1413,7 +1411,7 @@ public class AbilityFactoryZoneAffecting {
                             if (p.isComputer()) { // discard AI cards
                                 int max = chooser.getCardsIn(ZoneType.Hand).size();
                                 max = Math.min(max, numCards);
-                                List<Card> list = ComputerUtil.discardNumTypeAI(max, dValid, sa);
+                                List<Card> list = ComputerUtil.discardNumTypeAI(p, max, dValid, sa);
                                 if (mode.startsWith("Reveal")) {
                                     GuiChoose.oneOrNone("Computer has chosen", list);
                                 }
@@ -1602,7 +1600,7 @@ public class AbilityFactoryZoneAffecting {
 
         if (abCost != null) {
             // AI currently disabled for these costs
-            if (!CostUtil.checkSacrificeCost(abCost, source)) {
+            if (!CostUtil.checkSacrificeCost(ai, abCost, source)) {
                 return false;
             }
 
@@ -1610,7 +1608,7 @@ public class AbilityFactoryZoneAffecting {
                 return false;
             }
 
-            if (!CostUtil.checkDiscardCost(abCost, source)) {
+            if (!CostUtil.checkDiscardCost(ai, abCost, source)) {
                 return false;
             }
 

src/main/java/forge/card/cardfactory/CardFactory.java

@@ -217,10 +217,10 @@ public class CardFactory implements CardFactoryInterface {
         } else if (copySA instanceof Spell) {
             Spell spell = (Spell) copySA;
             if (spell.canPlayFromEffectAI(false, true)) {
-                ComputerUtil.playStackFree(copySA);
+                ComputerUtil.playStackFree(controller, copySA);
             }
         } else if (copySA.canPlayAI()) {
-            ComputerUtil.playStackFree(copySA);
+            ComputerUtil.playStackFree(controller, copySA);
         }
 
         c.addController(originalController);

src/main/java/forge/card/cardfactory/CardFactorySorceries.java

@@ -148,7 +148,7 @@ public class CardFactorySorceries {
 
                             for (final SpellAbility sa : choices) {
                                 if (sa.canPlayAI()) {
-                                    ComputerUtil.playStackFree(sa);
+                                    ComputerUtil.playStackFree(sa.getActivatingPlayer(), sa);
                                     if (pile1.get(i).isPermanent()) {
                                         exiled.remove(pile1.get(i));
                                     }
@@ -164,7 +164,7 @@ public class CardFactorySorceries {
 
                             for (final SpellAbility sa : choices) {
                                 if (sa.canPlayAI()) {
-                                    ComputerUtil.playStackFree(sa);
+                                    ComputerUtil.playStackFree(sa.getActivatingPlayer(), sa);
                                     if (pile2.get(i).isPermanent()) {
                                         exiled.remove(pile2.get(i));
                                     }

src/main/java/forge/card/cost/CostDamage.java

@@ -151,7 +151,7 @@ public class CostDamage extends CostPart {
      * , forge.Card, forge.card.cost.Cost_Payment)
      */
     @Override
-    public final boolean decideAIPayment(final SpellAbility ability, final Card source, final CostPayment payment) {
+    public final boolean decideAIPayment(final Player ai, final SpellAbility ability, final Card source, final CostPayment payment) {
         Integer c = this.convertAmount();
 
         if (c == null) {

src/main/java/forge/card/cost/CostDiscard.java

@@ -270,16 +270,16 @@ public class CostDiscard extends CostPartWithList {
      * , forge.Card, forge.card.cost.Cost_Payment)
      */
     @Override
-    public final boolean decideAIPayment(final SpellAbility ability, final Card source, final CostPayment payment) {
+    public final boolean decideAIPayment(final Player ai, final SpellAbility ability, final Card source, final CostPayment payment) {
         final String type = this.getType();
-        final Player activator = ability.getActivatingPlayer();
-        final List<Card> hand = activator.getCardsIn(ZoneType.Hand);
+
+        final List<Card> hand = ai.getCardsIn(ZoneType.Hand);
         this.resetList();
         if (type.equals("LastDrawn")) {
-            if (!hand.contains(activator.getLastDrawnCard())) {
+            if (!hand.contains(ai.getLastDrawnCard())) {
                 return false;
             }
-            this.addToList(activator.getLastDrawnCard());
+            this.addToList(ai.getLastDrawnCard());
         }
 
         else if (this.getThis()) {
@@ -310,7 +310,7 @@ public class CostDiscard extends CostPartWithList {
             if (type.equals("Random")) {
                 this.setList(CardLists.getRandomSubList(hand, c));
             } else {
-                this.setList(ComputerUtil.discardNumTypeAI(c, type.split(";"), ability));
+                this.setList(ComputerUtil.discardNumTypeAI(ai, c, type.split(";"), ability));
             }
         }
         return this.getList() != null;

src/main/java/forge/card/cost/CostExile.java

@@ -237,7 +237,7 @@ public class CostExile extends CostPartWithList {
      * , forge.Card, forge.card.cost.Cost_Payment)
      */
     @Override
-    public final boolean decideAIPayment(final SpellAbility ability, final Card source, final CostPayment payment) {
+    public final boolean decideAIPayment(final Player ai, final SpellAbility ability, final Card source, final CostPayment payment) {
         this.resetList();
         if (this.getThis()) {
             this.getList().add(source);
@@ -258,7 +258,7 @@ public class CostExile extends CostPartWithList {
             }
 
             if (this.from.equals(ZoneType.Library)) {
-                this.setList(AllZone.getComputerPlayer().getCardsIn(ZoneType.Library, c));
+                this.setList(ai.getCardsIn(ZoneType.Library, c));
             } else {
                 this.setList(ComputerUtil.chooseExileFrom(this.getFrom(), this.getType(), source,
                         ability.getTargetCard(), c));

src/main/java/forge/card/cost/CostGainLife.java

@@ -156,8 +156,8 @@ public class CostGainLife extends CostPart {
      * , forge.Card, forge.card.cost.Cost_Payment)
      */
     @Override
-    public final boolean decideAIPayment(final SpellAbility ability, final Card source, final CostPayment payment) {
-        final Player activator = ability.getActivatingPlayer();
+    public final boolean decideAIPayment(final Player ai, final SpellAbility ability, final Card source, final CostPayment payment) {
+
 
         Integer c = this.convertAmount();
         if (c == null) {
@@ -169,7 +169,7 @@ public class CostGainLife extends CostPart {
                 c = AbilityFactory.calculateAmount(source, this.getAmount(), ability);
             }
         }
-        if (!activator.getOpponent().canGainLife()) {
+        if (!ai.getOpponent().canGainLife()) {
             return false;
         }
         this.setLastPaidAmount(c);

src/main/java/forge/card/cost/CostMana.java

@@ -239,7 +239,7 @@ public class CostMana extends CostPart {
      * , forge.Card, forge.card.cost.Cost_Payment)
      */
     @Override
-    public final boolean decideAIPayment(final SpellAbility ability, final Card source, final CostPayment payment) {
+    public final boolean decideAIPayment(final Player ai, final SpellAbility ability, final Card source, final CostPayment payment) {
         return true;
     }
 

src/main/java/forge/card/cost/CostMill.java

@@ -20,7 +20,6 @@ package forge.card.cost;
 import java.util.Iterator;
 import java.util.List;
 
-import forge.AllZone;
 import forge.Card;
 
 import forge.GameActionUtil;
@@ -81,7 +80,7 @@ public class CostMill extends CostPartWithList {
      * , forge.Card, forge.card.cost.Cost_Payment)
      */
     @Override
-    public final boolean decideAIPayment(final SpellAbility ability, final Card source, final CostPayment payment) {
+    public final boolean decideAIPayment(final Player ai, final SpellAbility ability, final Card source, final CostPayment payment) {
         this.resetList();
 
         Integer c = this.convertAmount();
@@ -95,7 +94,7 @@ public class CostMill extends CostPartWithList {
             c = AbilityFactory.calculateAmount(source, this.getAmount(), ability);
         }
 
-        this.setList(AllZone.getComputerPlayer().getCardsIn(ZoneType.Library, c));
+        this.setList(ai.getCardsIn(ZoneType.Library, c));
 
         if ((this.getList() == null) || (this.getList().size() < c)) {
             return false;

src/main/java/forge/card/cost/CostPart.java

@@ -191,7 +191,7 @@ public abstract class CostPart {
      *            the payment
      * @return true, if successful
      */
-    public abstract boolean decideAIPayment(SpellAbility ability, Card source, CostPayment payment);
+    public abstract boolean decideAIPayment(final Player ai, SpellAbility ability, Card source, CostPayment payment);
 
     /**
      * Pay ai.

src/main/java/forge/card/cost/CostPayLife.java

@@ -161,8 +161,7 @@ public class CostPayLife extends CostPart {
      * , forge.Card, forge.card.cost.Cost_Payment)
      */
     @Override
-    public final boolean decideAIPayment(final SpellAbility ability, final Card source, final CostPayment payment) {
-        final Player activator = ability.getActivatingPlayer();
+    public final boolean decideAIPayment(final Player ai, final SpellAbility ability, final Card source, final CostPayment payment) {
 
         Integer c = this.convertAmount();
         if (c == null) {
@@ -174,7 +173,7 @@ public class CostPayLife extends CostPart {
                 c = AbilityFactory.calculateAmount(source, this.getAmount(), ability);
             }
         }
-        if (!activator.canPayLife(c)) {
+        if (!ai.canPayLife(c)) {
             return false;
         }
         // activator.payLife(c, null);

src/main/java/forge/card/cost/CostPayment.java

@@ -281,13 +281,12 @@ public class CostPayment {
      * 
      * @return a boolean.
      */
-    public final boolean payComputerCosts() {
+    public final boolean payComputerCosts(final Player ai) {
         // canPayAdditionalCosts now Player Agnostic
 
         // Just in case it wasn't set, but honestly it shouldn't have gotten
         // here without being set
-        final Player activator = AllZone.getComputerPlayer();
-        this.ability.setActivatingPlayer(activator);
+        this.ability.setActivatingPlayer(ai);
 
         final Card source = this.ability.getSourceCard();
         final ArrayList<CostPart> parts = this.cost.getCostParts();
@@ -298,7 +297,7 @@ public class CostPayment {
 
         // Set all of the decisions before attempting to pay anything
         for (final CostPart part : parts) {
-            if (!part.decideAIPayment(this.ability, source, this)) {
+            if (!part.decideAIPayment(ai, this.ability, source, this)) {
                 return false;
             }
         }

src/main/java/forge/card/cost/CostPutCounter.java

@@ -204,19 +204,18 @@ public class CostPutCounter extends CostPartWithList {
      * , forge.Card, forge.card.cost.Cost_Payment)
      */
     @Override
-    public final boolean decideAIPayment(final SpellAbility ability, final Card source, final CostPayment payment) {
+    public final boolean decideAIPayment(final Player ai, final SpellAbility ability, final Card source, final CostPayment payment) {
         this.resetList();
         if (this.getThis()) {
             this.addToList(source);
             return true;
         } else {
-            final Player activator = ability.getActivatingPlayer();
             Integer c = this.convertAmount();
             if (c == null) {
                 c = AbilityFactory.calculateAmount(source, this.getAmount(), ability);
             }
 
-            final List<Card> typeList = CardLists.getValidCards(activator.getCardsIn(ZoneType.Battlefield), this.getType().split(";"), activator, source);
+            final List<Card> typeList = CardLists.getValidCards(ai.getCardsIn(ZoneType.Battlefield), this.getType().split(";"), ai, source);
 
             Card card = null;
             if (this.getType().equals("Creature.YouCtrl")) {

src/main/java/forge/card/cost/CostRemoveCounter.java

@@ -21,7 +21,6 @@ import java.util.List;
 
 import forge.Card;
 
-import forge.AllZone;
 import forge.CardLists;
 import forge.Counters;
 import forge.card.abilityfactory.AbilityFactory;
@@ -268,10 +267,10 @@ public class CostRemoveCounter extends CostPartWithList {
      * , forge.Card, forge.card.cost.Cost_Payment)
      */
     @Override
-    public final boolean decideAIPayment(final SpellAbility ability, final Card source, final CostPayment payment) {
+    public final boolean decideAIPayment(final Player ai, final SpellAbility ability, final Card source, final CostPayment payment) {
         final String amount = this.getAmount();
         Integer c = this.convertAmount();
-        Player computer = AllZone.getComputerPlayer();
+
 
         if (c == null) {
             final String sVar = ability.getSVar(amount);
@@ -287,8 +286,7 @@ public class CostRemoveCounter extends CostPartWithList {
 
         if (!this.getThis()) {
             this.getList().clear();
-            final List<Card> typeList = CardLists
-                    .getValidCards(computer.getCardsIn(this.getZone()), this.getType().split(";"), computer, source);
+            final List<Card> typeList = CardLists.getValidCards(ai.getCardsIn(this.getZone()), this.getType().split(";"), ai, source);
             for (Card card : typeList) {
                 if (card.getCounters(this.getCounter()) >= c) {
                     this.addToList(card);

src/main/java/forge/card/cost/CostReturn.java

@@ -174,7 +174,7 @@ public class CostReturn extends CostPartWithList {
      * , forge.Card, forge.card.cost.Cost_Payment)
      */
     @Override
-    public final boolean decideAIPayment(final SpellAbility ability, final Card source, final CostPayment payment) {
+    public final boolean decideAIPayment(final Player ai, final SpellAbility ability, final Card source, final CostPayment payment) {
         this.resetList();
         if (this.getThis()) {
             this.getList().add(source);

src/main/java/forge/card/cost/CostReveal.java

@@ -96,10 +96,9 @@ public class CostReveal extends CostPartWithList {
      * , forge.Card, forge.card.cost.Cost_Payment)
      */
     @Override
-    public final boolean decideAIPayment(final SpellAbility ability, final Card source, final CostPayment payment) {
+    public final boolean decideAIPayment(final Player ai, final SpellAbility ability, final Card source, final CostPayment payment) {
         final String type = this.getType();
-        final Player activator = ability.getActivatingPlayer();
-        List<Card> hand = activator.getCardsIn(ZoneType.Hand);
+        List<Card> hand = ai.getCardsIn(ZoneType.Hand);
         this.resetList();
 
         if (this.getThis()) {
@@ -109,10 +108,10 @@ public class CostReveal extends CostPartWithList {
 
             this.getList().add(source);
         } else if (this.getType().equals("Hand")) {
-            this.setList(activator.getCardsIn(ZoneType.Hand));
+            this.setList(ai.getCardsIn(ZoneType.Hand));
             return true;
         } else {
-            hand = CardLists.getValidCards(hand, type.split(";"), activator, source);
+            hand = CardLists.getValidCards(hand, type.split(";"), ai, source);
             Integer c = this.convertAmount();
             if (c == null) {
                 final String sVar = ability.getSVar(this.getAmount());
@@ -123,7 +122,7 @@ public class CostReveal extends CostPartWithList {
                 }
             }
 
-            this.setList(ComputerUtil.discardNumTypeAI(c, type.split(";"), ability));
+            this.setList(ComputerUtil.discardNumTypeAI(ai, c, type.split(";"), ability));
         }
         return this.getList() != null;
     }

src/main/java/forge/card/cost/CostSacrifice.java

@@ -199,7 +199,7 @@ public class CostSacrifice extends CostPartWithList {
      * , forge.Card, forge.card.cost.Cost_Payment)
      */
     @Override
-    public final boolean decideAIPayment(final SpellAbility ability, final Card source, final CostPayment payment) {
+    public final boolean decideAIPayment(final Player ai, final SpellAbility ability, final Card source, final CostPayment payment) {
         this.resetList();
         final Player activator = ability.getActivatingPlayer();
         if (this.getThis()) {
@@ -221,7 +221,7 @@ public class CostSacrifice extends CostPartWithList {
 
                 c = AbilityFactory.calculateAmount(source, this.getAmount(), ability);
             }
-            this.setList(ComputerUtil.chooseSacrificeType(this.getType(), source, ability.getTargetCard(), c));
+            this.setList(ComputerUtil.chooseSacrificeType(activator, this.getType(), source, ability.getTargetCard(), c));
             if (this.getList() == null) {
                 return false;
             }

src/main/java/forge/card/cost/CostTap.java

@@ -103,7 +103,7 @@ public class CostTap extends CostPart {
      * , forge.Card, forge.card.cost.Cost_Payment)
      */
     @Override
-    public final boolean decideAIPayment(final SpellAbility ability, final Card source, final CostPayment payment) {
+    public final boolean decideAIPayment(final Player ai, final SpellAbility ability, final Card source, final CostPayment payment) {
         return true;
     }
 }

src/main/java/forge/card/cost/CostTapType.java

@@ -181,14 +181,14 @@ public class CostTapType extends CostPartWithList {
      * , forge.Card, forge.card.cost.Cost_Payment)
      */
     @Override
-    public final boolean decideAIPayment(final SpellAbility ability, final Card source, final CostPayment payment) {
+    public final boolean decideAIPayment(final Player ai, final SpellAbility ability, final Card source, final CostPayment payment) {
         final boolean tap = payment.getCost().getTap();
         final String amount = this.getAmount();
         Integer c = this.convertAmount();
         if (c == null) {
             final String sVar = ability.getSVar(amount);
             if (sVar.equals("XChoice")) {
-                List<Card> typeList = ability.getActivatingPlayer().getCardsIn(ZoneType.Battlefield);
+                List<Card> typeList = ai.getCardsIn(ZoneType.Battlefield);
                 typeList = CardLists.getValidCards(typeList, this.getType().split(";"), ability.getActivatingPlayer(), ability.getSourceCard());
                 typeList = CardLists.filter(typeList, Presets.UNTAPPED);
                 c = typeList.size();

src/main/java/forge/card/cost/CostUntap.java

@@ -103,7 +103,7 @@ public class CostUntap extends CostPart {
      * , forge.Card, forge.card.cost.Cost_Payment)
      */
     @Override
-    public final boolean decideAIPayment(final SpellAbility ability, final Card source, final CostPayment payment) {
+    public final boolean decideAIPayment(final Player ai, final SpellAbility ability, final Card source, final CostPayment payment) {
         return true;
     }
 }

src/main/java/forge/card/cost/CostUntapType.java

@@ -190,7 +190,7 @@ public class CostUntapType extends CostPartWithList {
      * , forge.Card, forge.card.cost.Cost_Payment)
      */
     @Override
-    public final boolean decideAIPayment(final SpellAbility ability, final Card source, final CostPayment payment) {
+    public final boolean decideAIPayment(final Player ai, final SpellAbility ability, final Card source, final CostPayment payment) {
         final boolean untap = payment.getCost().getUntap();
         final String amount = this.getAmount();
         Integer c = this.convertAmount();
@@ -198,7 +198,7 @@ public class CostUntapType extends CostPartWithList {
             final String sVar = ability.getSVar(amount);
             if (sVar.equals("XChoice")) {
                 List<Card> typeList = AllZoneUtil.getCardsIn(ZoneType.Battlefield);
-                typeList = CardLists.getValidCards(typeList, this.getType().split(";"), ability.getActivatingPlayer(), ability.getSourceCard());
+                typeList = CardLists.getValidCards(typeList, this.getType().split(";"), ai, ability.getSourceCard());
                 if (untap) {
                     typeList.remove(source);
                 }

src/main/java/forge/card/cost/CostUtil.java

@@ -50,8 +50,8 @@ public class CostUtil {
      *            the source
      * @return true, if successful
      */
-    public static boolean checkSacrificeCost(final Cost cost, final Card source) {
-        return checkSacrificeCost(cost, source, true);
+    public static boolean checkSacrificeCost(final Player ai, final Cost cost, final Card source) {
+        return checkSacrificeCost(ai, cost, source, true);
     }
 
     /**
@@ -65,7 +65,7 @@ public class CostUtil {
      *            is the gain important enough?
      * @return true, if successful
      */
-    public static boolean checkSacrificeCost(final Cost cost, final Card source, final boolean important) {
+    public static boolean checkSacrificeCost(final Player ai, final Cost cost, final Card source, final boolean important) {
         if (cost == null) {
             return true;
         }
@@ -86,9 +86,9 @@ public class CostUtil {
                     continue;
                 }
 
-                List<Card> typeList = AllZone.getComputerPlayer().getCardsIn(ZoneType.Battlefield);
+                List<Card> typeList = ai.getCardsIn(ZoneType.Battlefield);
                 typeList = CardLists.getValidCards(typeList, type.split(","), source.getController(), source);
-                if (ComputerUtil.getCardPreference(source, "SacCost", typeList) == null) {
+                if (ComputerUtil.getCardPreference(ai, source, "SacCost", typeList) == null) {
                     return false;
                 }
             }
@@ -105,7 +105,7 @@ public class CostUtil {
      *            the source
      * @return true, if successful
      */
-    public static boolean checkCreatureSacrificeCost(final Cost cost, final Card source) {
+    public static boolean checkCreatureSacrificeCost(final Player ai, final Cost cost, final Card source) {
         if (cost == null) {
             return true;
         }
@@ -121,9 +121,9 @@ public class CostUtil {
                     continue;
                 }
 
-                List<Card> typeList = AllZone.getComputerPlayer().getCardsIn(ZoneType.Battlefield);
+                List<Card> typeList = ai.getCardsIn(ZoneType.Battlefield);
                 typeList = CardLists.getValidCards(typeList, type.split(","), source.getController(), source);
-                if (ComputerUtil.getCardPreference(source, "SacCost", typeList) == null) {
+                if (ComputerUtil.getCardPreference(ai, source, "SacCost", typeList) == null) {
                     return false;
                 }
             }
@@ -207,7 +207,7 @@ public class CostUtil {
      *            the source
      * @return true, if successful
      */
-    public static boolean checkDiscardCost(final Cost cost, final Card source) {
+    public static boolean checkDiscardCost(final Player ai, final Cost cost, final Card source) {
         if (cost == null) {
             return true;
         }
@@ -216,12 +216,12 @@ public class CostUtil {
                 final CostDiscard disc = (CostDiscard) part;
 
                 final String type = disc.getType();
-                List<Card> typeList = AllZone.getComputerPlayer().getCardsIn(ZoneType.Hand);
-                if (typeList.size() > AllZone.getComputerPlayer().getMaxHandSize()) {
+                List<Card> typeList = ai.getCardsIn(ZoneType.Hand);
+                if (typeList.size() > ai.getMaxHandSize()) {
                     continue;
                 }
                 typeList = CardLists.getValidCards(typeList, type.split(","), source.getController(), source);
-                if (ComputerUtil.getCardPreference(source, "DiscardCost", typeList) == null) {
+                if (ComputerUtil.getCardPreference(ai, source, "DiscardCost", typeList) == null) {
                     return false;
                 }
             }

src/main/java/forge/card/spellability/SpellPermanent.java

@@ -295,7 +295,7 @@ public class SpellPermanent extends Spell {
         }
         // Wait for Main2 if possible
         if (Singletons.getModel().getGameState().getPhaseHandler().is(PhaseType.MAIN1)
-                && !ComputerUtil.castPermanentInMain1(this)) {
+                && !ComputerUtil.castPermanentInMain1(this, ai)) {
             return false;
         }
         // save cards with flash for surprise blocking
@@ -327,6 +327,7 @@ public class SpellPermanent extends Spell {
         if (mandatory) {
             return true;
         }
+        final Player ai = getActivatingPlayer(); 
         final Card card = this.getSourceCard();
         String mana = this.getPayCosts().getTotalMana();
         final Cost cost = this.getPayCosts();
@@ -337,11 +338,11 @@ public class SpellPermanent extends Spell {
                 return false;
             }
 
-            if (!CostUtil.checkDiscardCost(cost, card)) {
+            if (!CostUtil.checkDiscardCost(ai, cost, card)) {
                 return false;
             }
 
-            if (!CostUtil.checkSacrificeCost(cost, card)) {
+            if (!CostUtil.checkSacrificeCost(ai, cost, card)) {
                 return false;
             }
 
@@ -352,13 +353,13 @@ public class SpellPermanent extends Spell {
         
         // check on legendary
         if (card.isType("Legendary") && !AllZoneUtil.isCardInPlay("Mirror Gallery")) {
-            final List<Card> list = AllZone.getComputerPlayer().getCardsIn(ZoneType.Battlefield);
+            final List<Card> list = ai.getCardsIn(ZoneType.Battlefield);
             if (Iterables.any(list, CardPredicates.nameEquals(card.getName()))) {
                 return false;
             }
         }
         if (card.isPlaneswalker()) {
-            List<Card> list = AllZone.getComputerPlayer().getCardsIn(ZoneType.Battlefield);
+            List<Card> list = ai.getCardsIn(ZoneType.Battlefield);
             list = CardLists.filter(list, CardPredicates.Presets.PLANEWALKERS);
 
             for (int i = 0; i < list.size(); i++) {
@@ -372,7 +373,7 @@ public class SpellPermanent extends Spell {
             }
         }
         if (card.isType("World")) {
-            List<Card> list = AllZone.getComputerPlayer().getCardsIn(ZoneType.Battlefield);
+            List<Card> list = ai.getCardsIn(ZoneType.Battlefield);
             list = CardLists.getType(list, "World");
             if (list.size() > 0) {
                 return false;

src/main/java/forge/game/phase/CombatUtil.java

@@ -305,7 +305,7 @@ public class CombatUtil {
      *            the attackers
      * @return true, if one can be blocked
      */
-    public static boolean canBlockAtLeastOne(final Card blocker, final List<Card> attackers) {
+    public static boolean canBlockAtLeastOne(final Card blocker, final Iterable<Card> attackers) {
         for (Card attacker : attackers) {
             if (CombatUtil.canBlock(attacker, blocker)) {
                 return true;

src/main/java/forge/game/phase/PhaseHandler.java

@@ -433,10 +433,7 @@ public class PhaseHandler extends MyObservable implements java.io.Serializable {
                     c.resetReceivedDamageFromThisTurn();
                     c.resetDealtDamageToThisTurn();
                     c.resetDealtDamageToPlayerThisTurn();
-                    c.getDamageHistory().setDealtDmgToHumanThisTurn(false);
-                    c.getDamageHistory().setDealtDmgToComputerThisTurn(false);
-                    c.getDamageHistory().setDealtCombatDmgToHumanThisTurn(false);
-                    c.getDamageHistory().setDealtCombatDmgToComputerThisTurn(false);
+                    c.getDamageHistory().newTurn();
                     c.setRegeneratedThisTurn(0);
                     c.clearMustBlockCards();
                     if (this.isPlayerTurn(AllZone.getComputerPlayer())) {

src/main/java/forge/game/phase/Upkeep.java

@@ -378,7 +378,7 @@ public class Upkeep extends Phase implements java.io.Serializable {
                                 GameActionUtil.payCostDuringAbilityResolve(blankAbility, blankAbility.getPayCosts(),
                                         paidCommand, unpaidCommand, null);
                             } else { // computer
-                                if (ComputerUtil.shouldPayCost(c, upkeepCost) && ComputerUtil.canPayCost(blankAbility, controller)) {
+                                if (ComputerUtil.shouldPayCost(controller, c, upkeepCost) && ComputerUtil.canPayCost(blankAbility, controller)) {
                                     ComputerUtil.playNoStack(controller, blankAbility);
                                 } else {
                                     Singletons.getModel().getGameAction().sacrifice(c, null);
@@ -972,7 +972,7 @@ public class Upkeep extends Phase implements java.io.Serializable {
 
                             for (final SpellAbility sa : choices) {
                                 if (sa.canPlayAI()) {
-                                    ComputerUtil.playStackFree(sa);
+                                    ComputerUtil.playStackFree(player, sa);
                                     break;
                                 }
                             }

src/main/java/forge/game/player/AIPlayer.java

@@ -155,7 +155,7 @@ public class AIPlayer extends Player {
     public final List<Card> discard(final int num, final SpellAbility sa, final boolean duringResolution) {
         int max = this.getCardsIn(ZoneType.Hand).size();
         max = Math.min(max, num);
-        final List<Card> discarded = ComputerUtil.discardNumTypeAI(max, null, sa);
+        final List<Card> discarded = ComputerUtil.discardNumTypeAI(this, max, null, sa);
         for (int i = 0; i < discarded.size(); i++) {
             this.doDiscard(discarded.get(i), sa);
         }

src/main/java/forge/game/player/ComputerAIGeneral.java

@@ -49,13 +49,14 @@ import forge.game.zone.ZoneType;
  */
 public class ComputerAIGeneral implements Computer {
 
+    final private Player player;
     /**
      * <p>
      * Constructor for ComputerAI_General.
      * </p>
      */
-    public ComputerAIGeneral() {
-
+    public ComputerAIGeneral(Player computerPlayer) {
+        player = computerPlayer;
     }
 
     /**
@@ -65,7 +66,7 @@ public class ComputerAIGeneral implements Computer {
      */
     @Override
     public final void main() {
-        ComputerUtil.chooseLandsToPlay();
+        ComputerUtil.chooseLandsToPlay(player);
         this.playSpellAbilitiesStackEmpty();
     } // main()
 
@@ -81,7 +82,7 @@ public class ComputerAIGeneral implements Computer {
     private void playSpellAbilitiesStackEmpty() {
         final List<Card> list = getAvailableCards();
 
-        final boolean nextPhase = ComputerUtil.playSpellAbilities(getSpellAbilities(list));
+        final boolean nextPhase = ComputerUtil.playSpellAbilities(player, getSpellAbilities(list));
 
         if (nextPhase) {
             Singletons.getModel().getGameState().getPhaseHandler().passPriority();
@@ -95,10 +96,10 @@ public class ComputerAIGeneral implements Computer {
      * 
      * @return a boolean.
      */
-    public static boolean hasACardGivingHaste() {
-        final List<Card> all = AllZone.getComputerPlayer().getCardsIn(ZoneType.Battlefield);
-        all.addAll(CardFactoryUtil.getExternalZoneActivationCards(AllZone.getComputerPlayer()));
-        all.addAll(AllZone.getComputerPlayer().getCardsIn(ZoneType.Hand));
+    public static boolean hasACardGivingHaste(final Player ai) {
+        final List<Card> all = ai.getCardsIn(ZoneType.Battlefield);
+        all.addAll(CardFactoryUtil.getExternalZoneActivationCards(ai));
+        all.addAll(ai.getCardsIn(ZoneType.Hand));
 
         for (final Card c : all) {
             for (final SpellAbility sa : c.getSpellAbility()) {
@@ -130,17 +131,17 @@ public class ComputerAIGeneral implements Computer {
      * @return a {@link forge.CardList} object.
      */
     private List<Card> getAvailableCards() {
-        final Player computer = AllZone.getComputerPlayer();
-        final Player human = AllZone.getHumanPlayer();
-        List<Card> all = computer.getCardsIn(ZoneType.Hand);
-        all.addAll(computer.getCardsIn(ZoneType.Battlefield));
-        all.addAll(computer.getCardsIn(ZoneType.Exile));
-        all.addAll(computer.getCardsIn(ZoneType.Graveyard));
-        if (!computer.getCardsIn(ZoneType.Library).isEmpty()) {
-            all.add(computer.getCardsIn(ZoneType.Library).get(0));
+
+        final Player opp = player.getOpponent();
+        List<Card> all = player.getCardsIn(ZoneType.Hand);
+        all.addAll(player.getCardsIn(ZoneType.Battlefield));
+        all.addAll(player.getCardsIn(ZoneType.Exile));
+        all.addAll(player.getCardsIn(ZoneType.Graveyard));
+        if (!player.getCardsIn(ZoneType.Library).isEmpty()) {
+            all.add(player.getCardsIn(ZoneType.Library).get(0));
         }
-        all.addAll(human.getCardsIn(ZoneType.Exile));
-        all.addAll(human.getCardsIn(ZoneType.Battlefield));
+        all.addAll(opp.getCardsIn(ZoneType.Exile));
+        all.addAll(opp.getCardsIn(ZoneType.Battlefield));
         return all;
     }
 
@@ -208,15 +209,15 @@ public class ComputerAIGeneral implements Computer {
      * @return a {@link java.util.ArrayList} object.
      */
     private ArrayList<SpellAbility> getPossibleETBCounters() {
-        final Player computer = AllZone.getComputerPlayer();
-        final Player human = AllZone.getHumanPlayer();
-        List<Card> all = computer.getCardsIn(ZoneType.Hand);
-        all.addAll(computer.getCardsIn(ZoneType.Exile));
-        all.addAll(computer.getCardsIn(ZoneType.Graveyard));
-        if (!computer.getCardsIn(ZoneType.Library).isEmpty()) {
-            all.add(computer.getCardsIn(ZoneType.Library).get(0));
+
+        final Player opp = player.getOpponent();
+        List<Card> all = player.getCardsIn(ZoneType.Hand);
+        all.addAll(player.getCardsIn(ZoneType.Exile));
+        all.addAll(player.getCardsIn(ZoneType.Graveyard));
+        if (!player.getCardsIn(ZoneType.Library).isEmpty()) {
+            all.add(player.getCardsIn(ZoneType.Library).get(0));
         }
-        all.addAll(human.getCardsIn(ZoneType.Exile));
+        all.addAll(opp.getCardsIn(ZoneType.Exile));
 
         final ArrayList<SpellAbility> spellAbilities = new ArrayList<SpellAbility>();
         for (final Card c : all) {
@@ -295,7 +296,7 @@ public class ComputerAIGeneral implements Computer {
             Log.debug(sb.toString());
         }
 
-        AllZone.getComputerPlayer().getZone(ZoneType.Battlefield).updateObservers();
+        player.getZone(ZoneType.Battlefield).updateObservers();
 
         Singletons.getModel().getGameState().getPhaseHandler().setNeedToNextPhase(true);
     }
@@ -307,7 +308,7 @@ public class ComputerAIGeneral implements Computer {
      */
     @Override
     public final void declareBlockers() {
-        final List<Card> blockers = AllZoneUtil.getCreaturesInPlay(AllZone.getComputerPlayer());
+        final List<Card> blockers = AllZoneUtil.getCreaturesInPlay(player);
 
         AllZone.setCombat(ComputerUtilBlock.getBlockers(AllZone.getCombat(), blockers));
         
@@ -351,7 +352,7 @@ public class ComputerAIGeneral implements Computer {
         // top of stack is owned by human,
         ArrayList<SpellAbility> possibleCounters = getPlayableCounters(cards);
 
-        if ((possibleCounters.size() > 0) && ComputerUtil.playCounterSpell(possibleCounters)) {
+        if ((possibleCounters.size() > 0) && ComputerUtil.playCounterSpell(player, possibleCounters)) {
             // Responding CounterSpell is on the Stack trying to Counter the Spell
             // If playCounterSpell returns true, a Spell is hitting the Stack
             return;
@@ -359,7 +360,7 @@ public class ComputerAIGeneral implements Computer {
 
         possibleCounters.clear();
         possibleCounters = this.getPossibleETBCounters();
-        if ((possibleCounters.size() > 0) && !ComputerUtil.playSpellAbilities(possibleCounters)) {
+        if ((possibleCounters.size() > 0) && !ComputerUtil.playSpellAbilities(player, possibleCounters)) {
             // Responding Permanent w/ ETB Counter is on the Stack
             // If playSpellAbilities returns false, a Spell is hitting the Stack
             return;
@@ -367,7 +368,7 @@ public class ComputerAIGeneral implements Computer {
         final ArrayList<SpellAbility> sas = this.getSpellAbilities(cards);
         if (sas.size() > 0) {
             // Spell not Countered
-            if (!ComputerUtil.playSpellAbilities(sas)) {
+            if (!ComputerUtil.playSpellAbilities(player, sas)) {
                 return;
             }
         }

src/main/java/forge/game/player/ComputerUtil.java

@@ -18,7 +18,6 @@
 package forge.game.player;
 
 import java.util.ArrayList;
-import java.util.Arrays;
 import java.util.Collections;
 import java.util.Comparator;
 import java.util.HashMap;
@@ -85,20 +84,19 @@ public class ComputerUtil {
      *            objects.
      * @return a boolean.
      */
-    public static boolean playSpellAbilities(final SpellAbility[] all) {
-        Player computer = AllZone.getComputerPlayer();
+    public static boolean playSpellAbilities(final Player ai, final List<SpellAbility> all) {
         // not sure "playing biggest spell" matters?
         ComputerUtil.sortSpellAbilityByCost(all);
         ArrayList<SpellAbility> abilities = new ArrayList<SpellAbility>();
         final ArrayList<SpellAbility> newAbilities = new ArrayList<SpellAbility>();
         for (SpellAbility sa : all) {
             abilities.add(abilities.size(), sa);
-            sa.setActivatingPlayer(computer);
+            sa.setActivatingPlayer(ai);
             //add alternative costs as additional spell abilities
             abilities.addAll(GameActionUtil.getAlternativeCosts(sa));
         }
         for (SpellAbility sa : abilities) {
-            sa.setActivatingPlayer(computer);
+            sa.setActivatingPlayer(ai);
             newAbilities.addAll(GameActionUtil.getOptionalAdditionalCosts(sa));
         }
         abilities = newAbilities;
@@ -108,32 +106,15 @@ public class ComputerUtil {
             if ((af != null) && af.getAPI().equals("Counter")) {
                 continue;
             }
-            sa.setActivatingPlayer(computer);
+            sa.setActivatingPlayer(ai);
 
-            if (ComputerUtil.canBePlayedAndPayedByAI(computer, sa) && ComputerUtil.handlePlayingSpellAbility(sa)) {
+            if (ComputerUtil.canBePlayedAndPayedByAI(ai, sa) && ComputerUtil.handlePlayingSpellAbility(ai, sa)) {
                 return false;
             }
         }
         return true;
     } // playCards()
 
-    /**
-     * <p>
-     * playAbilities.
-     * </p>
-     * 
-     * @param all
-     *            a {@link java.util.ArrayList} object.
-     * @return a boolean.
-     */
-    public static boolean playSpellAbilities(final ArrayList<SpellAbility> all) {
-        final SpellAbility[] sas = new SpellAbility[all.size()];
-        for (int i = 0; i < sas.length; i++) {
-            sas[i] = all.get(i);
-        }
-        return ComputerUtil.playSpellAbilities(sas);
-    } // playCards()
-
     /**
      * <p>
      * handlePlayingSpellAbility.
@@ -143,15 +124,15 @@ public class ComputerUtil {
      *            a {@link forge.card.spellability.SpellAbility} object.
      * @return a boolean.
      */
-    public static boolean handlePlayingSpellAbility(final SpellAbility sa) {
+    public static boolean handlePlayingSpellAbility(final Player ai, final SpellAbility sa) {
 
         if (sa instanceof AbilityStatic) {
             final Cost cost = sa.getPayCosts();
-            if (cost == null && ComputerUtil.payManaCost(sa, AllZone.getComputerPlayer(), false, 0, true)) {
+            if (cost == null && ComputerUtil.payManaCost(sa, ai, false, 0, true)) {
                 sa.resolve();
             } else {
                 final CostPayment pay = new CostPayment(cost, sa);
-                if (pay.payComputerCosts()) {
+                if (pay.payComputerCosts(ai)) {
                     sa.resolve();
                 }
             }
@@ -180,7 +161,7 @@ public class ComputerUtil {
             }
 
             final CostPayment pay = new CostPayment(cost, sa);
-            if (pay.payComputerCosts()) {
+            if (pay.payComputerCosts(ai)) {
                 AllZone.getStack().addAndUnfreeze(sa);
                 if (sa.getSplicedCards() != null && !sa.getSplicedCards().isEmpty()) {
                     GuiChoose.oneOrNone("Computer reveals spliced cards:", sa.getSplicedCards());
@@ -204,7 +185,7 @@ public class ComputerUtil {
      *            a {@link forge.card.spellability.SpellAbility} object.
      * @return a int.
      */
-    public static int counterSpellRestriction(final SpellAbility sa) {
+    public static int counterSpellRestriction(final Player ai, final SpellAbility sa) {
         // Move this to AF?
         // Restriction Level is Based off a handful of factors
 
@@ -223,7 +204,7 @@ public class ComputerUtil {
         // Consider the costs here for relative "scoring"
         if (CostUtil.hasDiscardHandCost(cost)) {
             // Null Brooch aid
-            restrict -= (AllZone.getComputerPlayer().getCardsIn(ZoneType.Hand).size() * 20);
+            restrict -= (ai.getCardsIn(ZoneType.Hand).size() * 20);
         }
 
         // Abilities before Spells (card advantage)
@@ -241,7 +222,7 @@ public class ComputerUtil {
         if (unless != null) {
             final int amount = AbilityFactory.calculateAmount(source, unless, sa);
 
-            final int usableManaSources = CardFactoryUtil.getUsableManaSources(AllZone.getHumanPlayer());
+            final int usableManaSources = CardFactoryUtil.getUsableManaSources(ai.getOpponent());
 
             // If the Unless isn't enough, this should be less likely to be used
             if (amount > usableManaSources) {
@@ -275,34 +256,33 @@ public class ComputerUtil {
      *            a {@link java.util.ArrayList} object.
      * @return a boolean.
      */
-    public static boolean playCounterSpell(final ArrayList<SpellAbility> possibleCounters) {
-        Player computer = AllZone.getComputerPlayer();
+    public static boolean playCounterSpell(final Player ai, final ArrayList<SpellAbility> possibleCounters) {
         SpellAbility bestSA = null;
         int bestRestriction = Integer.MIN_VALUE;
         final ArrayList<SpellAbility> newAbilities = new ArrayList<SpellAbility>();
         for (SpellAbility sa : possibleCounters) {
-            sa.setActivatingPlayer(computer);
+            sa.setActivatingPlayer(ai);
             //add alternative costs as additional spell abilities
             newAbilities.addAll(GameActionUtil.getAlternativeCosts(sa));
         }
         possibleCounters.addAll(newAbilities);
         newAbilities.clear();
         for (SpellAbility sa : possibleCounters) {
-            sa.setActivatingPlayer(computer);
+            sa.setActivatingPlayer(ai);
             newAbilities.addAll(GameActionUtil.getOptionalAdditionalCosts(sa));
         }
         possibleCounters.addAll(newAbilities);
         for (final SpellAbility sa : possibleCounters) {
             SpellAbility currentSA = sa;
-            sa.setActivatingPlayer(computer);
+            sa.setActivatingPlayer(ai);
             // check everything necessary
-            if (ComputerUtil.canBePlayedAndPayedByAI(computer, currentSA)) {
+            if (ComputerUtil.canBePlayedAndPayedByAI(ai, currentSA)) {
                 if (bestSA == null) {
                     bestSA = currentSA;
-                    bestRestriction = ComputerUtil.counterSpellRestriction(currentSA);
+                    bestRestriction = ComputerUtil.counterSpellRestriction(ai, currentSA);
                 } else {
                     // Compare bestSA with this SA
-                    final int restrictionLevel = ComputerUtil.counterSpellRestriction(currentSA);
+                    final int restrictionLevel = ComputerUtil.counterSpellRestriction(ai, currentSA);
 
                     if (restrictionLevel > bestRestriction) {
                         bestRestriction = restrictionLevel;
@@ -336,7 +316,7 @@ public class ComputerUtil {
             AllZone.getStack().addAndUnfreeze(bestSA);
         } else {
             final CostPayment pay = new CostPayment(cost, bestSA);
-            if (pay.payComputerCosts()) {
+            if (pay.payComputerCosts(ai)) {
                 AllZone.getStack().addAndUnfreeze(bestSA);
             }
         }
@@ -366,7 +346,7 @@ public class ComputerUtil {
                 AllZone.getStack().add(sa);
             } else {
                 final CostPayment pay = new CostPayment(cost, sa);
-                if (pay.payComputerCosts()) {
+                if (pay.payComputerCosts(ai)) {
                     AllZone.getStack().add(sa);
                 }
             }
@@ -381,8 +361,8 @@ public class ComputerUtil {
      * @param sa
      *            a {@link forge.card.spellability.SpellAbility} object.
      */
-    public static final void playStackFree(final SpellAbility sa) {
-        sa.setActivatingPlayer(AllZone.getComputerPlayer());
+    public static final void playStackFree(final Player ai, final SpellAbility sa) {
+        sa.setActivatingPlayer(ai);
 
         final Card source = sa.getSourceCard();
         if (sa.isSpell() && !source.isCopiedSpell()) {
@@ -400,7 +380,7 @@ public class ComputerUtil {
      * @param sa
      *            a {@link forge.card.spellability.SpellAbility} object.
      */
-    public static final void playSpellAbilityWithoutPayingManaCost(final SpellAbility sa) {
+    public static final void playSpellAbilityWithoutPayingManaCost(final Player ai, final SpellAbility sa) {
         final SpellAbility newSA = sa.copy();
         final Cost cost = new Cost(sa.getSourceCard(), "", false);
         if (newSA.getPayCosts() != null) {
@@ -415,9 +395,9 @@ public class ComputerUtil {
         final StringBuilder sb = new StringBuilder();
         sb.append(sa.getDescription()).append(" (without paying its mana cost)");
         newSA.setDescription(sb.toString());
-        newSA.setActivatingPlayer(AllZone.getComputerPlayer());
+        newSA.setActivatingPlayer(ai);
 
-        if (!ComputerUtil.canPayAdditionalCosts(newSA)) {
+        if (!ComputerUtil.canPayAdditionalCosts(ai, newSA)) {
             return;
         }
 
@@ -427,7 +407,7 @@ public class ComputerUtil {
         }
 
         final CostPayment pay = new CostPayment(cost, newSA);
-        pay.payComputerCosts();
+        pay.payComputerCosts(ai);
 
         AllZone.getStack().add(newSA);
     }
@@ -456,7 +436,7 @@ public class ComputerUtil {
                 ComputerUtil.payManaCost(sa);
             } else {
                 final CostPayment pay = new CostPayment(cost, sa);
-                pay.payComputerCosts();
+                pay.payComputerCosts(ai);
             }
 
             AbilityFactory.resolve(sa, false);
@@ -492,12 +472,12 @@ public class ComputerUtil {
      *            a {@link java.lang.String} object.
      * @return a boolean.
      */
-    public static boolean shouldPayCost(final Card hostCard, final String costString) {
+    public static boolean shouldPayCost(final Player ai, final Card hostCard, final String costString) {
         final Cost cost = new Cost(hostCard, costString, false);
 
         for (final CostPart part : cost.getCostParts()) {
             if (part instanceof CostPayLife) {
-                final int remainingLife = AllZone.getComputerPlayer().getLife();
+                final int remainingLife = ai.getLife();
                 final int lifeCost = ((CostPayLife) part).convertAmount();
                 if ((remainingLife - lifeCost) < 10) {
                     return false; //Don't pay life if it would put AI under 10 life
@@ -564,8 +544,8 @@ public class ComputerUtil {
      *            a {@link forge.card.spellability.SpellAbility} object.
      * @return a boolean.
      */
-    public static boolean canPayAdditionalCosts(final SpellAbility sa) {
-        return ComputerUtil.canPayAdditionalCosts(sa, AllZone.getComputerPlayer());
+    public static boolean canPayAdditionalCosts(final Player ai, final SpellAbility sa) {
+        return ComputerUtil.canPayAdditionalCosts(sa, ai);
     }
 
     /**
@@ -744,7 +724,7 @@ public class ComputerUtil {
                     // Pay additional costs
                     if (m.getPayCosts() != null) {
                         final CostPayment pay = new CostPayment(m.getPayCosts(), m);
-                        if (!pay.payComputerCosts()) {
+                        if (!pay.payComputerCosts(player)) {
                             continue;
                         }
                     } else {
@@ -1273,18 +1253,17 @@ public class ComputerUtil {
      * 
      * @return a boolean.
      */
-    public static boolean chooseLandsToPlay() {
-        final Player computer = AllZone.getComputerPlayer();
-        if (!computer.canPlayLand()) {
+    public static boolean chooseLandsToPlay(final Player ai) {
+        if (!ai.canPlayLand()) {
             return false;
         }
-        final List<Card> hand = AllZone.getComputerPlayer().getCardsIn(ZoneType.Hand);
+        final List<Card> hand = ai.getCardsIn(ZoneType.Hand);
         List<Card> landList = CardLists.filter(hand, Presets.LANDS);
         List<Card> nonLandList = CardLists.filter(hand, Predicates.not(CardPredicates.Presets.LANDS));
 
-        List<Card> lands = computer.getCardsIn(ZoneType.Graveyard);
-        if (!computer.getCardsIn(ZoneType.Library).isEmpty()) {
-            lands.add(computer.getCardsIn(ZoneType.Library).get(0));
+        final List<Card> lands = ai.getCardsIn(ZoneType.Graveyard);
+        if (!ai.getCardsIn(ZoneType.Library).isEmpty()) {
+            lands.add(ai.getCardsIn(ZoneType.Library).get(0));
         }
         for (final Card crd : lands) {
             if (crd.isLand() && crd.hasKeyword("May be played")) {
@@ -1295,9 +1274,9 @@ public class ComputerUtil {
             return false;
         }
         if (landList.size() == 1 && nonLandList.size() < 3) {
-            List<Card> cardsInPlay = computer.getCardsIn(ZoneType.Battlefield);
+            List<Card> cardsInPlay = ai.getCardsIn(ZoneType.Battlefield);
             List<Card> landsInPlay = CardLists.filter(cardsInPlay, Presets.LANDS);
-            List<Card> allCards = computer.getCardsIn(ZoneType.Graveyard);
+            List<Card> allCards = ai.getCardsIn(ZoneType.Graveyard);
             allCards.addAll(cardsInPlay);
             int maxCmcInHand = Aggregates.max(hand, CardPredicates.Accessors.fnGetCmc);
             int max = Math.max(maxCmcInHand, 6);
@@ -1330,7 +1309,7 @@ public class ComputerUtil {
                     }
                 }
                 if (c.isType("Legendary") && !c.getName().equals("Flagstones of Trokair")) {
-                    final List<Card> list = AllZone.getComputerPlayer().getCardsIn(ZoneType.Battlefield);
+                    final List<Card> list = ai.getCardsIn(ZoneType.Battlefield);
                     if (Iterables.any(list, CardPredicates.nameEquals(c.getName()))) {
                         return false;
                     }
@@ -1340,8 +1319,8 @@ public class ComputerUtil {
                 // available
                 final ArrayList<SpellAbility> spellAbilities = c.getSpellAbilities();
 
-                final List<Card> hand = AllZone.getComputerPlayer().getCardsIn(ZoneType.Hand);
-                List<Card> lands = AllZone.getComputerPlayer().getCardsIn(ZoneType.Battlefield);
+                final List<Card> hand = ai.getCardsIn(ZoneType.Hand);
+                List<Card> lands = ai.getCardsIn(ZoneType.Battlefield);
                 lands.addAll(hand);
                 lands = CardLists.filter(lands, CardPredicates.Presets.LANDS);
                 int maxCmcInHand = Aggregates.max(hand, CardPredicates.Accessors.fnGetCmc);
@@ -1356,7 +1335,7 @@ public class ComputerUtil {
             }
         });
 
-        while (!landList.isEmpty() && computer.canPlayLand()) {
+        while (!landList.isEmpty() && ai.canPlayLand()) {
             // play as many lands as you can
             int ix = 0;
             while (landList.get(ix).isReflectedLand() && ((ix + 1) < landList.size())) {
@@ -1368,7 +1347,7 @@ public class ComputerUtil {
             Card land = landList.get(ix);
             //play basic lands that are needed the most
             if (!Iterables.any(landList, CardPredicates.Presets.BASIC_LANDS)) {
-                final List<Card> combined = AllZone.getComputerPlayer().getCardsIn(ZoneType.Battlefield);
+                final List<Card> combined = ai.getCardsIn(ZoneType.Battlefield);
 
                 final ArrayList<String> basics = new ArrayList<String>();
 
@@ -1400,7 +1379,7 @@ public class ComputerUtil {
                 land = landList.get(0);
             }
             landList.remove(land);
-            computer.playLand(land);
+            ai.playLand(land);
 
             if (AllZone.getStack().size() != 0) {
                 return true;
@@ -1422,7 +1401,7 @@ public class ComputerUtil {
      *            a {@link forge.CardList} object.
      * @return a {@link forge.Card} object.
      */
-    public static Card getCardPreference(final Card activate, final String pref, final List<Card> typeList) {
+    public static Card getCardPreference(final Player ai, final Card activate, final String pref, final List<Card> typeList) {
 
         if (activate != null) {
             final String[] prefValid = activate.getSVar("AIPreference").split("\\$");
@@ -1458,7 +1437,7 @@ public class ComputerUtil {
                 final int priority = 6 - ip;
                 for (Card c : typeList) {
                     if (priority == 3 && c.isLand()
-                            && !AllZone.getComputerPlayer().getCardsIn(ZoneType.Battlefield, "Crucible of Worlds").isEmpty()) {
+                            && !ai.getCardsIn(ZoneType.Battlefield, "Crucible of Worlds").isEmpty()) {
                         return c;
                     }
                     if (!c.getSVar("DiscardMe").equals("") && (Integer.parseInt(c.getSVar("DiscardMe")) == priority)) {
@@ -1470,8 +1449,8 @@ public class ComputerUtil {
             // Discard lands
             final List<Card> landsInHand = CardLists.getType(typeList, "Land");
             if (!landsInHand.isEmpty()) {
-                final List<Card> landsInPlay = CardLists.getType(AllZone.getComputerPlayer().getCardsIn(ZoneType.Battlefield), "Land");
-                final List<Card> nonLandsInHand = CardLists.getNotType(AllZone.getComputerPlayer().getCardsIn(ZoneType.Hand), "Land");
+                final List<Card> landsInPlay = CardLists.getType(ai.getCardsIn(ZoneType.Battlefield), "Land");
+                final List<Card> nonLandsInHand = CardLists.getNotType(ai.getCardsIn(ZoneType.Hand), "Land");
                 final int highestCMC = Math.max(6, Aggregates.max(nonLandsInHand, CardPredicates.Accessors.fnGetCmc));
                 if (landsInPlay.size() >= highestCMC
                         || (landsInPlay.size() + landsInHand.size() > 6 && landsInHand.size() > 1)) {
@@ -1499,12 +1478,11 @@ public class ComputerUtil {
      *            a int.
      * @return a {@link forge.CardList} object.
      */
-    public static List<Card> chooseSacrificeType(final String type, final Card activate, final Card target,
+    public static List<Card> chooseSacrificeType(final Player ai, final String type, final Card activate, final Card target,
             final int amount) {
-        Player activator = AllZone.getComputerPlayer();
-        List<Card> typeList = activator.getCardsIn(ZoneType.Battlefield);
+        List<Card> typeList = ai.getCardsIn(ZoneType.Battlefield);
         typeList = CardLists.getValidCards(typeList, type.split(";"), activate.getController(), activate);
-        if (activator.hasKeyword("You can't sacrifice creatures to cast spells or activate abilities.")) {
+        if (ai.hasKeyword("You can't sacrifice creatures to cast spells or activate abilities.")) {
             typeList = CardLists.getNotType(typeList, "Creature");
         }
 
@@ -1520,7 +1498,7 @@ public class ComputerUtil {
         int count = 0;
 
         while (count < amount) {
-            final Card prefCard = ComputerUtil.getCardPreference(activate, "SacCost", typeList);
+            final Card prefCard = ComputerUtil.getCardPreference(ai, activate, "SacCost", typeList);
             if (prefCard != null) {
                 sacList.add(prefCard);
                 typeList.remove(prefCard);
@@ -1552,8 +1530,8 @@ public class ComputerUtil {
      *            a {@link forge.card.spellability.SpellAbility} object.
      * @return a List<Card> of discarded cards.
      */
-    public static List<Card> discardNumTypeAI(final int numDiscard, final String[] uTypes, final SpellAbility sa) {
-        List<Card> hand = AllZone.getComputerPlayer().getCardsIn(ZoneType.Hand);
+    public static List<Card> discardNumTypeAI(final Player ai, final int numDiscard, final String[] uTypes, final SpellAbility sa) {
+        List<Card> hand = ai.getCardsIn(ZoneType.Hand);
         Card sourceCard = null;
 
         if ((uTypes != null) && (sa != null)) {
@@ -1583,7 +1561,7 @@ public class ComputerUtil {
                 }
             }
             if (prefCard == null) {
-                prefCard = ComputerUtil.getCardPreference(sourceCard, "DiscardCost", hand);
+                prefCard = ComputerUtil.getCardPreference(ai, sourceCard, "DiscardCost", hand);
             }
             if (prefCard != null) {
                 discardList.add(prefCard);
@@ -1878,24 +1856,6 @@ public class ComputerUtil {
         return returnList;
     }
 
-    /**
-     * <p>
-     * getPossibleAttackers.
-     * </p>
-     * 
-     * @return a {@link forge.CardList} object.
-     */
-    public static List<Card> getPossibleAttackers() {
-        List<Card> list = AllZone.getComputerPlayer().getCardsIn(ZoneType.Battlefield);
-        list = CardLists.filter(list, new Predicate<Card>() {
-            @Override
-            public boolean apply(final Card c) {
-                return CombatUtil.canAttack(c);
-            }
-        });
-        return list;
-    }
-
     /**
      * <p>
      * getAttackers.
@@ -1932,7 +1892,7 @@ public class ComputerUtil {
      *            an array of {@link forge.card.spellability.SpellAbility}
      *            objects.
      */
-    static void sortSpellAbilityByCost(final SpellAbility[] sa) {
+    static void sortSpellAbilityByCost(final List<SpellAbility> sa) {
         // sort from highest cost to lowest
         // we want the highest costs first
         final Comparator<SpellAbility> c = new Comparator<SpellAbility>() {
@@ -1954,7 +1914,7 @@ public class ComputerUtil {
                 return b1 - a1;
             }
         }; // Comparator
-        Arrays.sort(sa, c);
+        Collections.sort(sa, c);
     } // sortSpellAbilityByCost()
 
     public static int getSpellAbilityPriority(SpellAbility sa) {
@@ -2176,18 +2136,18 @@ public class ComputerUtil {
      *            a SpellAbility object.
      * @return a boolean.
      */
-    public static boolean castPermanentInMain1(final SpellAbility sa) {
+    public static boolean castPermanentInMain1(final SpellAbility sa, final Player ai) {
         final Card card = sa.getSourceCard();
         if (card.getSVar("PlayMain1").equals("TRUE")) {
             return true;
         }
-        if ((card.isCreature() && (ComputerAIGeneral.hasACardGivingHaste()
+        if ((card.isCreature() && (ComputerAIGeneral.hasACardGivingHaste(ai)
                 || card.hasKeyword("Haste"))) || card.hasKeyword("Exalted")) {
             return true;
         }
 
         // get all cards the computer controls with BuffedBy
-        final List<Card> buffed = AllZone.getComputerPlayer().getCardsIn(ZoneType.Battlefield);
+        final List<Card> buffed = ai.getCardsIn(ZoneType.Battlefield);
         for (int j = 0; j < buffed.size(); j++) {
             final Card buffedcard = buffed.get(j);
             if (buffedcard.getSVar("BuffedBy").length() > 0) {
@@ -2209,7 +2169,7 @@ public class ComputerUtil {
         } // BuffedBy
 
         // get all cards the human controls with AntiBuffedBy
-        final List<Card> antibuffed = AllZone.getHumanPlayer().getCardsIn(ZoneType.Battlefield);
+        final List<Card> antibuffed = ai.getOpponent().getCardsIn(ZoneType.Battlefield);
         for (int k = 0; k < antibuffed.size(); k++) {
             final Card buffedcard = antibuffed.get(k);
             if (buffedcard.getSVar("AntiBuffedBy").length() > 0) {
@@ -2220,9 +2180,9 @@ public class ComputerUtil {
                 }
             }
         } // AntiBuffedBy
-        final List<Card> vengevines = AllZone.getComputerPlayer().getCardsIn(ZoneType.Graveyard, "Vengevine");
+        final List<Card> vengevines = ai.getCardsIn(ZoneType.Graveyard, "Vengevine");
         if (vengevines.size() > 0) {
-            final List<Card> creatures = AllZone.getComputerPlayer().getCardsIn(ZoneType.Hand);
+            final List<Card> creatures = ai.getCardsIn(ZoneType.Hand);
             final List<Card> creatures2 = new ArrayList<Card>();
             for (int i = 0; i < creatures.size(); i++) {
                 if (creatures.get(i).isCreature() && creatures.get(i).getManaCost().getCMC() <= 3) {
@@ -2242,21 +2202,21 @@ public class ComputerUtil {
      * @param source the source Card
      * @return true if it's OK to cast this Card for less than the max targets
      */
-    public static boolean shouldCastLessThanMax(final Card source) {
+    public static boolean shouldCastLessThanMax(final Player ai, final Card source) {
         boolean ret = true;
         if (source.getManaCost().countX() > 0) {
             // If TargetMax is MaxTgts (i.e., an "X" cost), this is fine because AI is limited by mana available.
         } else {
             // Otherwise, if life is possibly in danger, then this is fine.
             Combat combat = new Combat();
-            combat.initiatePossibleDefenders(AllZone.getComputerPlayer());
-            List<Card> attackers = AllZoneUtil.getCreaturesInPlay(AllZone.getHumanPlayer());
+            combat.initiatePossibleDefenders(ai);
+            List<Card> attackers = AllZoneUtil.getCreaturesInPlay(ai.getOpponent());
             for (Card att : attackers) {
                 if (CombatUtil.canAttackNextTurn(att)) {
                     combat.addAttacker(att);
                 }
             }
-            combat = ComputerUtilBlock.getBlockers(combat, AllZoneUtil.getCreaturesInPlay(AllZone.getComputerPlayer()));
+            combat = ComputerUtilBlock.getBlockers(combat, AllZoneUtil.getCreaturesInPlay(ai));
             if (!CombatUtil.lifeInDanger(combat)) {
                 // Otherwise, return false. Do not play now.
                 ret = false;
@@ -2270,13 +2230,13 @@ public class ComputerUtil {
      * @param discard Card to discard
      * @return boolean
      */
-    public static boolean isWorseThanDraw(Card discard) {
+    public static boolean isWorseThanDraw(final Player ai, Card discard) {
         if (!discard.getSVar("DiscardMe").equals("")) {
             return true;
         }
-        final List<Card> landsInPlay = CardLists.filter(AllZone.getComputerPlayer().getCardsIn(ZoneType.Battlefield), CardPredicates.Presets.LANDS);
-        final List<Card> landsInHand = CardLists.filter(AllZone.getComputerPlayer().getCardsIn(ZoneType.Hand), CardPredicates.Presets.LANDS);
-        final List<Card> nonLandsInHand = CardLists.getNotType(AllZone.getComputerPlayer().getCardsIn(ZoneType.Hand), "Land");
+        final List<Card> landsInPlay = CardLists.filter(ai.getCardsIn(ZoneType.Battlefield), CardPredicates.Presets.LANDS);
+        final List<Card> landsInHand = CardLists.filter(ai.getCardsIn(ZoneType.Hand), CardPredicates.Presets.LANDS);
+        final List<Card> nonLandsInHand = CardLists.getNotType(ai.getCardsIn(ZoneType.Hand), "Land");
         final int highestCMC = Math.max(6, Aggregates.max(nonLandsInHand, CardPredicates.Accessors.fnGetCmc));
         final int discardCMC = discard.getCMC();
         if (discard.isLand()) {
@@ -2290,7 +2250,7 @@ public class ComputerUtil {
             if (discardCMC > landsInPlay.size() + landsInHand.size() + 2) {
                 // not castable for some time.
                 return true;
-            } else if (Singletons.getModel().getGameState().getPhaseHandler().isPlayerTurn(AllZone.getHumanPlayer())
+            } else if (!Singletons.getModel().getGameState().getPhaseHandler().isPlayerTurn(ai)
                     && Singletons.getModel().getGameState().getPhaseHandler().getPhase().isAfter(PhaseType.MAIN2)
                     && discardCMC > landsInPlay.size() + landsInHand.size()
                     && discardCMC > landsInPlay.size() + 1
@@ -2298,7 +2258,7 @@ public class ComputerUtil {
                 // not castable for at least one other turn.
                 return true;
             } else if (landsInPlay.size() > 5 && discard.getCMC() <= 1
-                    && !discard.hasProperty("hasXCost", AllZone.getComputerPlayer(), null)) {
+                    && !discard.hasProperty("hasXCost", ai, null)) {
                 // Probably don't need small stuff now.
                 return true;
             }

src/main/java/forge/game/player/Player.java

@@ -2434,10 +2434,7 @@ public abstract class Player extends GameEntity  implements Comparable<Player> {
                 return false;
             }
         } else if (property.equals("wasDealtDamageBySourceThisGame")) {
-            if (this.isHuman() && !source.getDamageHistory().getDealtDmgToHumanThisGame()) {
-                return false;
-            }
-            if (this.isComputer() && !source.getDamageHistory().getDealtDmgToComputerThisGame()) {
+            if (!source.getDamageHistory().getThisGameDamaged().contains(this)) {
                 return false;
             }
         } else if (property.startsWith("wasDealtDamageThisTurn")) {

src/main/java/forge/gui/home/gauntlet/CSubmenuGauntletContests.java

@@ -250,16 +250,13 @@ public enum CSubmenuGauntletContests implements ICDoc {
             public Object doInBackground() {
                 final GauntletData gd = FModel.SINGLETON_INSTANCE.getGauntletData();
 
-                AllZone.getHumanPlayer().setDeck(gd.getUserDeck());
-                AllZone.getComputerPlayer().setDeck(gd.getDecks().get(gd.getCompleted()));
+                Deck human = gd.getUserDeck();
+                Deck aiDeck = gd.getDecks().get(gd.getCompleted());
                 Singletons.getModel().getMatchState().setGameType(GameType.Gauntlet);
 
-                if (AllZone.getHumanPlayer().getDeck() != null && AllZone.getComputerPlayer().getDeck() != null) {
-                    GameNew.newGame(new PlayerStartsGame(
-                            AllZone.getHumanPlayer(),
-                            AllZone.getHumanPlayer().getDeck()),
-                            new PlayerStartsGame(AllZone.getComputerPlayer(),
-                            AllZone.getComputerPlayer().getDeck()));
+                if (human != null && aiDeck != null) {
+                    GameNew.newGame(new PlayerStartsGame(AllZone.getHumanPlayer(), human),
+                            new PlayerStartsGame(AllZone.getComputerPlayer(), aiDeck));
                 }
                 return null;
             }

src/main/java/forge/gui/home/gauntlet/CSubmenuGauntletLoad.java

@@ -12,6 +12,7 @@ import javax.swing.SwingWorker;
 import forge.AllZone;
 import forge.Command;
 import forge.Singletons;
+import forge.deck.Deck;
 import forge.game.GameNew;
 import forge.game.GameType;
 import forge.game.PlayerStartsGame;
@@ -103,16 +104,14 @@ public enum CSubmenuGauntletLoad implements ICDoc {
             public Object doInBackground() {
                 final GauntletData gd = FModel.SINGLETON_INSTANCE.getGauntletData();
 
-                AllZone.getHumanPlayer().setDeck(gd.getUserDeck());
-                AllZone.getComputerPlayer().setDeck(gd.getDecks().get(gd.getCompleted()));
+                Deck human = gd.getUserDeck();
+                Deck aiDeck = gd.getDecks().get(gd.getCompleted());                
+                
                 Singletons.getModel().getMatchState().setGameType(GameType.Gauntlet);
 
-                if (AllZone.getHumanPlayer().getDeck() != null && AllZone.getComputerPlayer().getDeck() != null) {
-                    GameNew.newGame(new PlayerStartsGame(
-                            AllZone.getHumanPlayer(),
-                            AllZone.getHumanPlayer().getDeck()),
-                            new PlayerStartsGame(AllZone.getComputerPlayer(),
-                            AllZone.getComputerPlayer().getDeck()));
+                if (human != null && aiDeck != null) {
+                    GameNew.newGame(new PlayerStartsGame(AllZone.getHumanPlayer(), human),
+                            new PlayerStartsGame(AllZone.getComputerPlayer(), aiDeck));
                 }
                 return null;
             }

src/main/java/forge/model/FModel.java

@@ -42,12 +42,15 @@ import forge.game.GameState;
 import forge.game.GameSummary;
 import forge.game.player.ComputerAIGeneral;
 import forge.game.player.ComputerAIInput;
+import forge.game.player.Player;
+import forge.game.player.PlayerType;
 import forge.gauntlet.GauntletData;
 import forge.properties.ForgePreferences;
 import forge.properties.ForgePreferences.FPref;
 import forge.properties.ForgeProps;
 import forge.properties.NewConstants;
 import forge.quest.data.QuestPreferences;
+import forge.util.Aggregates;
 import forge.util.FileUtil;
 import forge.util.HttpUtil;
 import forge.util.IStorageView;
@@ -146,7 +149,9 @@ public enum FModel {
 
         // Instantiate AI
         AllZone.setInputControl(new InputControl(FModel.this));
-        AllZone.getInputControl().setComputer(new ComputerAIInput(new ComputerAIGeneral()));
+        Player computerPlayer = Aggregates.firstFieldEquals(gameState.getPlayers(), Player.Accessors.FN_GET_TYPE, PlayerType.COMPUTER);
+        AllZone.getInputControl().setComputer(new ComputerAIInput(new ComputerAIGeneral(computerPlayer)));
+        /// Wrong direction here. It is computer that lives inside player, not a player in computer
 
         testNetworkConnection();