From 9da3686ecbcd378bf5e6c4709153a0918215b64c Mon Sep 17 00:00:00 2001
From: Wendell Wilkerson <wendell.wilkerson@gmail.com>
Date: Sat, 14 Aug 2021 23:34:18 -0500
Subject: [PATCH] Adds check for X cannot be zero for AI player

---
 forge-ai/src/main/java/forge/ai/ComputerUtilMana.java | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/forge-ai/src/main/java/forge/ai/ComputerUtilMana.java b/forge-ai/src/main/java/forge/ai/ComputerUtilMana.java
index 8b1bb71505f..5063bffca10 100644
--- a/forge-ai/src/main/java/forge/ai/ComputerUtilMana.java
+++ b/forge-ai/src/main/java/forge/ai/ComputerUtilMana.java
@@ -1504,6 +1504,11 @@ public class ComputerUtilMana {
                 manaToAdd = AbilityUtils.calculateAmount(card, "X", sa) * xCounter;
             }
 
+            if (manaToAdd < 1 && !payCosts.getCostMana().canXbe0()) {
+                // AI cannot really handle X costs properly but this keeps AI form violating rules
+                manaToAdd = 1;
+            }
+
             String xColor = sa.getParamOrDefault("XColor", "1");
             if (card.hasKeyword("Spend only colored mana on X. No more than one mana of each color may be spent this way.")) {
                 xColor = "WUBRGX";