From 9b98565e8a1db2f668f0d057e0d269c5e98e644d Mon Sep 17 00:00:00 2001
From: Oleg Agafonov <jaydi85@gmail.com>
Date: Tue, 10 Aug 2021 14:31:06 +0400
Subject: [PATCH] Miss synchronized, can be related to
 ConcurrentModificationException problem in
 d202278ccd6876f8113d26951e6bd018f6e9b792

---
 .../src/main/java/mage/abilities/effects/ContinuousEffects.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Mage/src/main/java/mage/abilities/effects/ContinuousEffects.java b/Mage/src/main/java/mage/abilities/effects/ContinuousEffects.java
index 883807e98eb..2aa92e4872f 100644
--- a/Mage/src/main/java/mage/abilities/effects/ContinuousEffects.java
+++ b/Mage/src/main/java/mage/abilities/effects/ContinuousEffects.java
@@ -1333,7 +1333,7 @@ public class ContinuousEffects implements Serializable {
         }
     }
 
-    public void setController(UUID cardId, UUID controllerId) {
+    public synchronized void setController(UUID cardId, UUID controllerId) {
         for (ContinuousEffectsList effectsList : allEffectsLists) {
             setControllerForEffect(effectsList, cardId, controllerId);
         }