From b459ca2ec03d95eb070c4adc846fdcd4e5eba25a Mon Sep 17 00:00:00 2001
From: swordshine <swordshine@cardforge.org>
Date: Sun, 1 Jun 2014 05:10:51 +0000
Subject: [PATCH] - Fixed a potential NPE

---
 forge-ai/src/main/java/forge/ai/ability/TokenAi.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/forge-ai/src/main/java/forge/ai/ability/TokenAi.java b/forge-ai/src/main/java/forge/ai/ability/TokenAi.java
index b8a8273d3b0..03135847ded 100644
--- a/forge-ai/src/main/java/forge/ai/ability/TokenAi.java
+++ b/forge-ai/src/main/java/forge/ai/ability/TokenAi.java
@@ -183,7 +183,7 @@ public class TokenAi extends SpellAbilityAi {
         }
 
         //interrupt sacrifice effect
-        if (sacOnStack) {
+        if (sacOnStack && game.getStack().peekAbility().hasParam("SacValid")) {
             final int nTokens = AbilityUtils.calculateAmount(sa.getHostCard(), this.tokenAmount, sa);
             SpellAbility topStack = game.getStack().peekAbility();
             final String valid = topStack.getParam("SacValid");