- Fixed the AI trying to pay for abilities it doesn't control, causing weird side effects and slowdowns.

forge-ai/src/main/java/forge/ai/AiController.java

@@ -673,16 +673,16 @@ public class AiController {
     private AiPlayDecision canPlayAndPayFor(final SpellAbility sa) {
         boolean xCost = sa.getPayCosts().hasXInAnyCostPart();
 
+        if (!sa.canPlay()) {
+            return AiPlayDecision.CantPlaySa;
+        }
+
         if (!xCost && !ComputerUtilCost.canPayCost(sa, player)) {
             // for most costs, it's OK to check if they can be paid early in order to avoid running a heavy API check
             // when the AI won't even be able to play the spell in the first place (even if it could afford it)
             return AiPlayDecision.CantAfford;
         }
 
-        if (!sa.canPlay()) {
-            return AiPlayDecision.CantPlaySa;
-        }
-
         AiPlayDecision canPlay = canPlaySa(sa); // this is the "heaviest" check, which also sets up targets, defines X, etc.
         if (canPlay != AiPlayDecision.WillPlay) {
             return canPlay;