*Added ManaSpent & ManaNotSpent restrictions to Triggers. Triggers with ManaSpent$ Green for instance will only go off if Green mana was spent to cast the host card.

*New AI SVar; "ManaNeededToAvoidNegativeEffect". This is a comma-separated list of colors the AI will try to use to pay for the cost, but only if it actually has a source for that color mana.
*Added Plaxmanta.

.gitattributes

@@ -5678,6 +5678,7 @@ res/cardsfolder/p/plated_wurm.txt svneol=native#text/plain
 res/cardsfolder/p/platinum_angel.txt svneol=native#text/plain
 res/cardsfolder/p/platinum_emperion.txt svneol=native#text/plain
 res/cardsfolder/p/plaxcaster_frogling.txt -text
+res/cardsfolder/p/plaxmanta.txt -text
 res/cardsfolder/p/plover_knights.txt svneol=native#text/plain
 res/cardsfolder/p/plow_under.txt svneol=native#text/plain
 res/cardsfolder/p/plumes_of_peace.txt svneol=native#text/plain

res/cardsfolder/p/plaxmanta.txt

@@ -0,0 +1,15 @@
+Name:Plaxmanta
+ManaCost:1 U
+Types:Creature Beast
+Text:no text
+PT:2/2
+K:Flash
+T:Mode$ ChangesZone | Destination$ Battlefield | ValidCard$ Card.Self | Execute$ TrigPumpAll | TriggerDescription$ When CARDNAME enters the battlefield, creatures you control gain shroud until end of turn. (They can't be the targets of spells or abilities.)
+T:Mode$ ChangesZone | Destination$ Battlefield | ValidCard$ Card.Self | Execute$ TrigSac | ManaNotSpent$ G | TriggerDescription$ When CARDNAME enters the battlefield, sacrifice it unless G was spent to cast it.
+SVar:TrigPumpAll:AB$PumpAll | Cost$ 0 | ValidCards$ Creature.YouCtrl | KW$ Shroud
+SVar:TrigSac:AB$Sacrifice | Cost$ 0 | Defined$ Self
+SVar:ManaNeededToAvoidNegativeEffect:Green
+SVar:RemRandomDeck:True
+Oracle:Flash\nWhen Plaxmanta enters the battlefield, creatures you control gain shroud until end of turn. (They can't be the targets of spells or abilities.)\nWhen Plaxmanta enters the battlefield, sacrifice it unless {G} was spent to cast it.
+SetInfo:DIS|Uncommon|http://magiccards.info/scans/en/di/29.jpg
+End

src/main/java/forge/ComputerUtil.java

@@ -488,6 +488,9 @@ public class ComputerUtil {
         ArrayList<String> colors;
 
         cost = ((ManaPool) manapool).subtractMana(sa, cost);
+        if(card.getSVar("ManaNeededToAvoidNegativeEffect") != "") {
+            cost.setManaNeededToAvoidNegativeEffect(card.getSVar("ManaNeededToAvoidNegativeEffect").split(","));
+        }
 
         CardList manaSources = getAvailableMana();
 
@@ -733,6 +736,8 @@ public class ComputerUtil {
 
         ArrayList<String> colors;
         
+        ArrayList<String> colorsNeededToAvoidNegativeEffect = cost.getManaNeededToAvoidNegativeEffect();
+
         ArrayList<Ability_Mana> res = new ArrayList<Ability_Mana>();
 
         ManaCost onlyColored = new ManaCost(cost.toString());
@@ -746,6 +751,12 @@ public class ComputerUtil {
                     res.add(am);
                     break;
                 }
+                for(String col : colorsNeededToAvoidNegativeEffect) {
+                    if(col.equalsIgnoreCase(colors.get(j))
+                            || col.substring(0,1).equalsIgnoreCase(colors.get(j))) {
+                        res.add(am);
+                    }
+                }
             }
         }
 
@@ -759,6 +770,12 @@ public class ComputerUtil {
                     res.add(am);
                     break;
                 }
+                for(String col : colorsNeededToAvoidNegativeEffect) {
+                    if(col.equalsIgnoreCase(colors.get(j))
+                            || col.substring(0,1).equalsIgnoreCase(colors.get(j))) {
+                        res.add(am);
+                    }
+                }
             }
         }
 

src/main/java/forge/card/mana/ManaCost.java

@@ -20,6 +20,8 @@ public class ManaCost {
     private ArrayList<Object> manaPart;
     private HashMap<String, Integer> sunburstMap = new HashMap<String, Integer>();
     private int xcounter = 0;
+    private ArrayList<String> manaNeededToAvoidNegativeEffect = new ArrayList<String>();
+    private ArrayList<String> manaPaidToAvoidNegativeEffect = new ArrayList<String>();
 
 //manaCost can be like "0", "3", "G", "GW", "10", "3 GW", "10 GW"
     //or "split hybrid mana" like "2/G 2/G", "2/B 2/B 2/B"
@@ -63,11 +65,11 @@ public class ManaCost {
     public String getColorsPaid() {
     	String s = "";
     	for (String key: sunburstMap.keySet()) {
-    	    if(key.equals("black")) s+= "B";
-    	    if(key.equals("blue")) s+= "U";
-    	    if(key.equals("green")) s+= "G";
-    	    if(key.equals("red")) s+= "R";
-    	    if(key.equals("white")) s+= "W";
+    	    if(key.equalsIgnoreCase("black") || key.equalsIgnoreCase("B")) s+= "B";
+    	    if(key.equalsIgnoreCase("blue") || key.equalsIgnoreCase("U")) s+= "U";
+    	    if(key.equalsIgnoreCase("green") || key.equalsIgnoreCase("G")) s+= "G";
+    	    if(key.equalsIgnoreCase("red") || key.equalsIgnoreCase("R")) s+= "R";
+    	    if(key.equalsIgnoreCase("white") || key.equalsIgnoreCase("W")) s+= "W";
     	}
         return s;
     }
@@ -146,6 +148,14 @@ public class ManaCost {
      * @return a boolean.
      */
     public boolean isNeeded(String mana) {
+        if(manaNeededToAvoidNegativeEffect.size() != 0) {
+           for(String s : manaNeededToAvoidNegativeEffect) {
+               if ((s.equalsIgnoreCase(mana) || s.substring(0,1).equalsIgnoreCase(mana))
+                       && !manaPaidToAvoidNegativeEffect.contains(mana)) {
+                   return true;
+               }
+           }
+        }
         if (mana.length() > 1)
             mana = Input_PayManaCostUtil.getShortColorString(mana);
         Mana_Part m;
@@ -203,6 +213,9 @@ public class ManaCost {
      * @return a boolean.
      */
     public boolean payMana(String color) {
+        if(manaNeededToAvoidNegativeEffect.contains(color) && !manaPaidToAvoidNegativeEffect.contains(color)) {
+            manaPaidToAvoidNegativeEffect.add(color);
+        }
         color = Input_PayManaCostUtil.getShortColorString(color);
         return addMana(color);
     }
@@ -488,4 +501,14 @@ public class ManaCost {
                 manaPart.remove(manaPart.get(i));
         }
     }
+    
+    public void setManaNeededToAvoidNegativeEffect(String[] manaCol) {
+        for(String s : manaCol) {
+            manaNeededToAvoidNegativeEffect.add(s);
+        }
+    }
+    
+    public ArrayList<String> getManaNeededToAvoidNegativeEffect() {
+        return manaNeededToAvoidNegativeEffect;
+    }
 }

src/main/java/forge/card/trigger/Trigger.java

@@ -431,6 +431,17 @@ public abstract class Trigger {
             }
         }
 
+        if(mapParams.containsKey("ManaSpent")) {
+            if(!hostCard.getColorsPaid().contains(mapParams.get("ManaSpent"))) {
+                return false;
+            }
+        }
+        
+        if(mapParams.containsKey("ManaNotSpent")) {
+            if(hostCard.getColorsPaid().contains(mapParams.get("ManaNotSpent"))) {
+                return false;
+            }
+        }
 
         return true;
     }