diff --git a/.gitattributes b/.gitattributes
index 044c02014bb..79e38ccf2b3 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -14259,6 +14259,7 @@ src/main/java/forge/game/event/GameEventPlayerPoisoned.java -text
 src/main/java/forge/game/event/GameEventPlayerPriority.java -text
 src/main/java/forge/game/event/GameEventShuffle.java -text
 src/main/java/forge/game/event/GameEventSpellAbilityCast.java -text
+src/main/java/forge/game/event/GameEventSpellRemovedFromStack.java -text
 src/main/java/forge/game/event/GameEventSpellResolved.java -text
 src/main/java/forge/game/event/GameEventTokenCreated.java -text
 src/main/java/forge/game/event/GameEventTurnBegan.java -text
diff --git a/src/main/java/forge/Card.java b/src/main/java/forge/Card.java
index 71f68339aa3..13cd84733f8 100644
--- a/src/main/java/forge/Card.java
+++ b/src/main/java/forge/Card.java
@@ -3918,8 +3918,8 @@ public class Card extends GameEntity implements Comparable<Card> {
      * @param n
      *            a int.
      */
-    public final void setReplicateMagnitude(final int n) {
-        this.replicateMagnitude = n;
+    public final void resetReplicateMagnitude() {
+        this.replicateMagnitude = 0;
     }
 
     /**
diff --git a/src/main/java/forge/card/ability/effects/EndTurnEffect.java b/src/main/java/forge/card/ability/effects/EndTurnEffect.java
index dfa0eb8958d..bd14ba684cc 100644
--- a/src/main/java/forge/card/ability/effects/EndTurnEffect.java
+++ b/src/main/java/forge/card/ability/effects/EndTurnEffect.java
@@ -41,7 +41,6 @@ public class EndTurnEffect extends SpellAbilityEffect {
         game.getPhaseHandler().endTurnByEffect();
 
         // Update observers
-        game.getStack().updateObservers();
         for (Player p : game.getPlayers()) {
             p.updateObservers();
             p.updateLabelObservers();
diff --git a/src/main/java/forge/control/FControlGameEventHandler.java b/src/main/java/forge/control/FControlGameEventHandler.java
index 7aa727a25d9..cb980163df7 100644
--- a/src/main/java/forge/control/FControlGameEventHandler.java
+++ b/src/main/java/forge/control/FControlGameEventHandler.java
@@ -13,6 +13,9 @@ import forge.game.event.GameEventAnteCardsSelected;
 import forge.game.event.GameEventGameFinished;
 import forge.game.event.GameEventGameOutcome;
 import forge.game.event.GameEventPlayerControl;
+import forge.game.event.GameEventSpellAbilityCast;
+import forge.game.event.GameEventSpellRemovedFromStack;
+import forge.game.event.GameEventSpellResolved;
 import forge.game.event.GameEventTurnBegan;
 import forge.game.event.GameEventTurnPhase;
 import forge.game.event.IGameEventVisitor;
@@ -24,6 +27,7 @@ import forge.gui.match.CMatchUI;
 import forge.gui.match.VMatchUI;
 import forge.gui.match.ViewWinLose;
 import forge.gui.match.controllers.CMessage;
+import forge.gui.match.controllers.CStack;
 import forge.gui.match.nonsingleton.VHand;
 import forge.gui.match.nonsingleton.VField.PhaseLabel;
 
@@ -113,4 +117,30 @@ public class FControlGameEventHandler extends IGameEventVisitor.Base<Void> {
         } });
         return null;
     }
+    
+    private final AtomicBoolean stackUpdPlanned = new AtomicBoolean(false);
+    private final Runnable updStack = new Runnable() { @Override public void run() { 
+            stackUpdPlanned.set(false);
+            CStack.SINGLETON_INSTANCE.update();
+        }
+    };
+
+    @Override
+    public Void visit(GameEventSpellAbilityCast event) {
+        if ( !stackUpdPlanned.getAndSet(true) )
+            FThreads.invokeInEdtNowOrLater(updStack);
+        return null;
+    }
+    @Override
+    public Void visit(GameEventSpellResolved event) {
+        if ( !stackUpdPlanned.getAndSet(true) )
+            FThreads.invokeInEdtNowOrLater(updStack);
+        return null;
+    }
+    @Override
+    public Void visit(GameEventSpellRemovedFromStack event) {
+        if ( !stackUpdPlanned.getAndSet(true) )
+            FThreads.invokeInEdtNowOrLater(updStack);
+        return null;
+    }    
 }
\ No newline at end of file
diff --git a/src/main/java/forge/game/GameActionUtil.java b/src/main/java/forge/game/GameActionUtil.java
index 4c9ad5aa974..2242644f1af 100644
--- a/src/main/java/forge/game/GameActionUtil.java
+++ b/src/main/java/forge/game/GameActionUtil.java
@@ -74,7 +74,7 @@ import forge.util.TextUtil;
  */
 public final class GameActionUtil {
     
-    private static final class CascadeAbility extends Ability {
+    public static final class CascadeAbility extends Ability {
         private final Player controller;
         private final Card cascCard;
 
@@ -132,7 +132,7 @@ public final class GameActionUtil {
         }
     }
 
-    private static final class CascadeExecutor implements Command {
+    public static final class CascadeExecutor implements Command {
         private final Card c;
         private final Game game;
         private final Player controller;
@@ -144,7 +144,7 @@ public final class GameActionUtil {
          * @param controller
          * @param c
          */
-        private CascadeExecutor(Player controller, Card c, final Game game) {
+        public CascadeExecutor(Player controller, Card c, final Game game) {
             this.controller = controller;
             this.c = c;
             this.game = game;
@@ -187,7 +187,7 @@ public final class GameActionUtil {
      * TODO: Write javadoc for this type.
      *
      */
-    private static final class RippleAbility extends Ability {
+    public static final class RippleAbility extends Ability {
         private final Player controller;
         private final int rippleCount;
         private final Card rippleCard;
@@ -263,7 +263,7 @@ public final class GameActionUtil {
      * TODO: Write javadoc for this type.
      *
      */
-    private static final class RippleExecutor implements Command {
+    public static final class RippleExecutor implements Command {
         private final Player controller;
         private final Card c;
         private static final long serialVersionUID = -845154812215847505L;
@@ -273,7 +273,7 @@ public final class GameActionUtil {
          * @param controller
          * @param c
          */
-        private RippleExecutor(Player controller, Card c) {
+        public RippleExecutor(Player controller, Card c) {
             this.controller = controller;
             this.c = c;
         }
@@ -316,24 +316,6 @@ public final class GameActionUtil {
         throw new AssertionError();
     }
 
-    /**
-     * <p>
-     * executePlayCardEffects.
-     * </p>
-     * 
-     * @param sa
-     *            a {@link forge.card.spellability.SpellAbility} object.
-     */
-    public static void executePlayCardEffects(final SpellAbility sa) {
-        // (called from MagicStack.java)
-
-        final Game game = sa.getActivatingPlayer().getGame(); 
-        final Command cascade = new CascadeExecutor(sa.getActivatingPlayer(), sa.getSourceCard(), game);
-        cascade.run();
-        final Command ripple = new RippleExecutor(sa.getActivatingPlayer(), sa.getSourceCard());
-        ripple.run();
-    }
-
     // this is for cards like Sengir Vampire
     /**
      * <p>
diff --git a/src/main/java/forge/game/event/GameEventSpellAbilityCast.java b/src/main/java/forge/game/event/GameEventSpellAbilityCast.java
index 5bda7d08450..c2750be130e 100644
--- a/src/main/java/forge/game/event/GameEventSpellAbilityCast.java
+++ b/src/main/java/forge/game/event/GameEventSpellAbilityCast.java
@@ -9,9 +9,11 @@ import forge.card.spellability.SpellAbility;
 public class GameEventSpellAbilityCast extends GameEvent {
 
     public final SpellAbility sa; 
+    public final boolean replicate;
     
-    public GameEventSpellAbilityCast(SpellAbility sp) {
+    public GameEventSpellAbilityCast(SpellAbility sp, boolean replicate) {
         sa = sp;
+        this.replicate = replicate;
     }
 
     /* (non-Javadoc)
diff --git a/src/main/java/forge/game/event/GameEventSpellRemovedFromStack.java b/src/main/java/forge/game/event/GameEventSpellRemovedFromStack.java
new file mode 100644
index 00000000000..15c8ff86131
--- /dev/null
+++ b/src/main/java/forge/game/event/GameEventSpellRemovedFromStack.java
@@ -0,0 +1,22 @@
+package forge.game.event;
+
+import forge.card.spellability.SpellAbility;
+
+/** 
+ * TODO: Write javadoc for this type.
+ *
+ */
+public class GameEventSpellRemovedFromStack extends GameEvent {
+    public final SpellAbility sa;
+
+    public GameEventSpellRemovedFromStack(SpellAbility spellAbility) {
+        sa = spellAbility;
+    }
+
+    @Override
+    public <T> T visit(IGameEventVisitor<T> visitor) {
+        // TODO Auto-generated method stub
+        return visitor.visit(this);
+    }
+
+}
diff --git a/src/main/java/forge/game/event/IGameEventVisitor.java b/src/main/java/forge/game/event/IGameEventVisitor.java
index acb41edb71f..2bd0f9069a0 100644
--- a/src/main/java/forge/game/event/IGameEventVisitor.java
+++ b/src/main/java/forge/game/event/IGameEventVisitor.java
@@ -33,6 +33,7 @@ public interface IGameEventVisitor<T> {
     T visit(GameEventShuffle event);
     T visit(GameEventSpellAbilityCast gameEventSpellAbilityCast);
     T visit(GameEventSpellResolved event);
+    T visit(GameEventSpellRemovedFromStack event);
     T visit(GameEventTokenCreated event);
     T visit(GameEventTurnBegan gameEventTurnBegan);
     T visit(GameEventTurnEnded event);
@@ -68,6 +69,7 @@ public interface IGameEventVisitor<T> {
         public T visit(GameEventShuffle event) { return null; }
         public T visit(GameEventSpellResolved event) { return null; }
         public T visit(GameEventSpellAbilityCast event) { return null; }
+        public T visit(GameEventSpellRemovedFromStack event) { return null; }
         public T visit(GameEventTokenCreated event) { return null; }
         public T visit(GameEventTurnBegan event) { return null; }
         public T visit(GameEventTurnEnded event) { return null; }
diff --git a/src/main/java/forge/game/zone/MagicStack.java b/src/main/java/forge/game/zone/MagicStack.java
index b69cf840298..09b6af97b9e 100644
--- a/src/main/java/forge/game/zone/MagicStack.java
+++ b/src/main/java/forge/game/zone/MagicStack.java
@@ -31,6 +31,7 @@ import com.esotericsoftware.minlog.Log;
 
 import forge.Card;
 import forge.CardLists;
+import forge.Command;
 import forge.FThreads;
 import forge.Singletons;
 import forge.CardPredicates.Presets;
@@ -51,11 +52,13 @@ import forge.card.spellability.Target;
 import forge.card.spellability.TargetChoices;
 import forge.card.trigger.Trigger;
 import forge.card.trigger.TriggerType;
-import forge.game.GameActionUtil;
 import forge.game.Game;
+import forge.game.GameActionUtil.CascadeExecutor;
+import forge.game.GameActionUtil.RippleExecutor;
 import forge.game.ai.ComputerUtil;
 import forge.game.ai.ComputerUtilCard;
 import forge.game.event.GameEventSpellAbilityCast;
+import forge.game.event.GameEventSpellRemovedFromStack;
 import forge.game.event.GameEventSpellResolved;
 import forge.game.player.HumanPlay;
 import forge.game.player.Player;
@@ -63,7 +66,6 @@ import forge.game.player.PlayerController.ManaPaymentPurpose;
 import forge.gui.GuiChoose;
 import forge.gui.input.InputSelectCards;
 import forge.gui.input.InputSelectCardsFromList;
-import forge.util.MyObservable;
 
 /**
  * <p>
@@ -73,7 +75,7 @@ import forge.util.MyObservable;
  * @author Forge
  * @version $Id$
  */
-public class MagicStack extends MyObservable implements Iterable<SpellAbilityStackInstance> {
+public class MagicStack /* extends MyObservable */ implements Iterable<SpellAbilityStackInstance> {
     private final List<SpellAbility> simultaneousStackEntryList = new ArrayList<SpellAbility>();
 
     // They don't provide a LIFO queue, so had to use a deque
@@ -133,7 +135,6 @@ public class MagicStack extends MyObservable implements Iterable<SpellAbilitySta
         this.thisTurnCast.clear();
         this.curResolvingCard = null;
         this.frozenStack.clear();
-        this.updateObservers();
     }
 
     /**
@@ -299,7 +300,6 @@ public class MagicStack extends MyObservable implements Iterable<SpellAbilitySta
             return;
         }
 
-        game.fireEvent(new GameEventSpellAbilityCast(sp));
         
         // if activating player slips through the cracks, assign activating
         // Player to the controller here
@@ -341,12 +341,12 @@ public class MagicStack extends MyObservable implements Iterable<SpellAbilitySta
                 if (sp.isReplicate()) {
                     // TODO: convert multikicker/replicate support in abCost so this
                     // doesn't happen here
-                    // X and multi and replicate are not supported yet
                     
                     final Player activating = sp.getActivatingPlayer();
-                    final Cost costMultikicker = new Cost(sp.getMultiKickerManaCost(), false);
-                    
+                    final Cost costMultikicker = new Cost(sp.getReplicateManaCost(), false);
+                    sp.getSourceCard().resetReplicateMagnitude();
                     boolean hasPaid = false;
+                    
                     do {
                         int rMagnitude = sp.getSourceCard().getReplicateMagnitude();
                         String prompt = String.format("Replicate for %s\r\nTimes Replicated: %d\r\n", sp.getSourceCard(), rMagnitude);
@@ -464,6 +464,7 @@ public class MagicStack extends MyObservable implements Iterable<SpellAbilitySta
         final SpellAbilityStackInstance si = new SpellAbilityStackInstance(sp);
         
         this.stack.addFirst(si);
+        game.fireEvent(new GameEventSpellAbilityCast(sp, false));
 
         // 2012-07-21 the following comparison needs to move below the pushes but somehow screws up priority
         // When it's down there. That makes absolutely no sense to me, so i'm putting it back for now
@@ -472,12 +473,14 @@ public class MagicStack extends MyObservable implements Iterable<SpellAbilitySta
             game.getPhaseHandler().setPriority(sp.getActivatingPlayer());
         }
 
-        this.updateObservers();
-
         if (sp.isSpell() && !sp.getSourceCard().isCopiedSpell()) {
             this.thisTurnCast.add(sp.getSourceCard());
 
-            GameActionUtil.executePlayCardEffects(sp);
+            final Game game = sp.getActivatingPlayer().getGame(); 
+            final Command cascade = new CascadeExecutor(sp.getActivatingPlayer(), sp.getSourceCard(), game);
+            cascade.run();
+            final Command ripple = new RippleExecutor(sp.getActivatingPlayer(), sp.getSourceCard());
+            ripple.run();
         }
     }
 
@@ -516,6 +519,7 @@ public class MagicStack extends MyObservable implements Iterable<SpellAbilitySta
             sa.resolve();
             // do creatures ETB from here?
         }
+        
         this.finishResolving(sa, thisHasFizzled);
 
         game.fireEvent(new GameEventSpellResolved(sa, thisHasFizzled));
@@ -572,20 +576,17 @@ public class MagicStack extends MyObservable implements Iterable<SpellAbilitySta
         if (si != null) {
             this.remove(si);
         }
-    
+
         // After SA resolves we have to do a handful of things
         this.setResolving(false);
         this.unfreezeStack();
         sa.resetOnceResolved();
-    
+
         game.getAction().checkStateEffects();
-    
         game.getPhaseHandler().onStackResolved();
-    
+
         this.curResolvingCard = null;
-    
-        this.updateObservers();
-    
+
         // TODO: this is a huge hack. Why is this necessary?
         // hostCard in AF is not the same object that's on the battlefield
         // verified by System.identityHashCode(card);
@@ -728,7 +729,7 @@ public class MagicStack extends MyObservable implements Iterable<SpellAbilitySta
     public final void remove(final SpellAbilityStackInstance si) {
         this.stack.remove(si);
         this.frozenStack.remove(si);
-        this.updateObservers();
+        game.fireEvent(new GameEventSpellRemovedFromStack(si.getSpellAbility()));
     }
 
     public final SpellAbilityStackInstance getInstanceFromSpellAbility(final SpellAbility sa) {
@@ -901,6 +902,7 @@ public class MagicStack extends MyObservable implements Iterable<SpellAbilitySta
      */
     public void clear() {
         stack.clear();
+        game.fireEvent(new GameEventSpellRemovedFromStack(null));
     }
     
     @Override 
diff --git a/src/main/java/forge/gui/match/controllers/CStack.java b/src/main/java/forge/gui/match/controllers/CStack.java
index 49232eb9fd1..c5da0b9b59f 100644
--- a/src/main/java/forge/gui/match/controllers/CStack.java
+++ b/src/main/java/forge/gui/match/controllers/CStack.java
@@ -1,10 +1,6 @@
 package forge.gui.match.controllers;
 
-import java.util.Observable;
-import java.util.Observer;
-
 import forge.Command;
-import forge.FThreads;
 import forge.game.player.LobbyPlayer;
 import forge.game.zone.MagicStack;
 import forge.gui.framework.EDocID;
@@ -18,7 +14,7 @@ import forge.gui.match.views.VStack;
  * <br><br><i>(C at beginning of class name denotes a control class.)</i>
  *
  */
-public enum CStack implements ICDoc, Observer {
+public enum CStack implements ICDoc {
     /** */
     SINGLETON_INSTANCE;
     
@@ -40,32 +36,15 @@ public enum CStack implements ICDoc, Observer {
     public void initialize() {
     }
 
-    private final Runnable upd = new Runnable() { @Override public void run() {
-        SDisplayUtil.showTab(EDocID.REPORT_STACK.getDoc());
-        VStack.SINGLETON_INSTANCE.updateStack(model, viewer); 
-    } };
-
-    /* (non-Javadoc)
-     * @see java.util.Observer#update(java.util.Observable, java.lang.Object)
-     */
-    @Override
-    public void update(final Observable arg0, Object arg1) {
-        update();
-    }
-
-    /* (non-Javadoc)
-     * @see forge.gui.framework.ICDoc#update()
-     */
     @Override
     public void update() {
-        FThreads.invokeInEdtNowOrLater(upd);
+        SDisplayUtil.showTab(EDocID.REPORT_STACK.getDoc());
+        VStack.SINGLETON_INSTANCE.updateStack(model, viewer); 
     }
     
     public void setModel(MagicStack model, LobbyPlayer guiPlayer) { 
         this.model = model; 
         this.viewer = guiPlayer;
-        
-        model.addObserver(this);
     }
 
 }