- Fixed possible null pointer error for changeCost in Abilities that have 0 for mana cost.

- Fixed logic for uncastable spells. Now will only prevent spells that do not have a mana cost from being played.

src/forge/Ability_Cost.java

@@ -152,7 +152,8 @@ public class Ability_Cost {
 	}
 	
 	public void changeCost(SpellAbility sa){
-		manaCost = AllZone.GameAction.GetSpellCostChange(sa).toString();
+		if (manaCost != "0")
+			manaCost = AllZone.GameAction.GetSpellCostChange(sa).toString();
 	}
 	
 	public String toString()

src/forge/GameAction.java

@@ -3114,7 +3114,7 @@ public class GameAction {
         
         for(SpellAbility sa:abilities) {
         	// for uncastables like lotus bloom, check if manaCost is blank
-            if(sa.canPlay() && !sa.getManaCost().equals("")) {
+            if(sa.canPlay() && (!sa.isSpell() || !sa.getManaCost().equals(""))) {
                 choices.add(sa.toString());
                 map.put(sa.toString(), sa);
             }