From 441b6bc2e933e1ac4da2c5799892b7ceb4365146 Mon Sep 17 00:00:00 2001
From: LevelX2 <ludwig.hirth@online.de>
Date: Sun, 19 Mar 2017 11:20:37 +0100
Subject: [PATCH] Fixed AI handling of cost reduction of reductions defined
 with "up to" causing game locks.

---
 .../effects/common/cost/SpellsCostReductionAllEffect.java  | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Mage/src/main/java/mage/abilities/effects/common/cost/SpellsCostReductionAllEffect.java b/Mage/src/main/java/mage/abilities/effects/common/cost/SpellsCostReductionAllEffect.java
index e63c115b7ed..dd47a9e0e7e 100644
--- a/Mage/src/main/java/mage/abilities/effects/common/cost/SpellsCostReductionAllEffect.java
+++ b/Mage/src/main/java/mage/abilities/effects/common/cost/SpellsCostReductionAllEffect.java
@@ -31,6 +31,7 @@ import java.util.LinkedHashSet;
 import java.util.Set;
 import mage.Mana;
 import mage.abilities.Ability;
+import mage.abilities.ActivatedAbility;
 import mage.abilities.SpellAbility;
 import mage.cards.Card;
 import mage.choices.ChoiceImpl;
@@ -85,6 +86,12 @@ public class SpellsCostReductionAllEffect extends CostModificationEffectImpl {
     @Override
     public boolean apply(Game game, Ability source, Ability abilityToModify) {
         if (upTo) {
+            if (abilityToModify instanceof ActivatedAbility) {
+                if (((ActivatedAbility) abilityToModify).isCheckPlayableMode()) {
+                    CardUtil.reduceCost(abilityToModify, this.amount);
+                    return true;
+                }
+            }
             Mana mana = abilityToModify.getManaCostsToPay().getMana();
             int reduceMax = mana.getGeneric();
             if (reduceMax > 2) {