Prevent returning ability that can't be played

forge-gui/src/main/java/forge/card/spellability/Ability.java

@@ -80,9 +80,12 @@ public abstract class Ability extends SpellAbility {
     }
     
     public static final Ability PLAY_LAND_SURROGATE = new Ability(null, (Cost)null){
+    	@Override
+        public boolean canPlay() {
+    		return true; //if this ability is added anywhere, it can be assummed that land can be played
+        }
         @Override
         public void resolve() {
-            // TODO Auto-generated method stub
             throw new RuntimeException("This ability is intended to indicate \"land to play\" choice only");
         }
         @Override

forge-gui/src/main/java/forge/game/player/PlayerControllerHuman.java

@@ -105,7 +105,10 @@ public class PlayerControllerHuman extends PlayerController {
             return null;
         }
         if (abilities.size() == 1 && !abilities.get(0).promptIfOnlyPossibleAbility()) {
-            return abilities.get(0);
+        	if (abilities.get(0).canPlay()) {
+        		return abilities.get(0); //only return ability if it's playable, otherwise return null
+        	}
+        	return null;
         }
 
         //show menu if mouse was trigger for ability
@@ -120,7 +123,7 @@ public class PlayerControllerHuman extends PlayerController {
         				public void run() {
         			        CMessage.SINGLETON_INSTANCE.getInputControl().selectAbility(ab);
         				}
-        			}, ab.getActivatingPlayer() == null || ab.canPlay()); //check getActivatingPlayer() to account for playing lands
+        			}, ab.canPlay());
         	shortcut++;
         	if (shortcut > KeyEvent.VK_9) {
         		shortcut = 0; //stop adding shortcuts after 9