From d462d1fcc80a08d113a7b56ea05782423cdc3a3e Mon Sep 17 00:00:00 2001
From: Susucre <34709007+Susucre@users.noreply.github.com>
Date: Sun, 13 Jul 2025 16:10:37 +0200
Subject: [PATCH] add better null checking around Mirror Golem exileId code

---
 Mage.Sets/src/mage/cards/m/MirrorGolem.java | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/Mage.Sets/src/mage/cards/m/MirrorGolem.java b/Mage.Sets/src/mage/cards/m/MirrorGolem.java
index c90a7efde34..b0e3d070bae 100644
--- a/Mage.Sets/src/mage/cards/m/MirrorGolem.java
+++ b/Mage.Sets/src/mage/cards/m/MirrorGolem.java
@@ -76,11 +76,13 @@ class MirrorGolemImprintEffect extends OneShotEffect {
             Permanent sourcePermanent = game.getPermanent(source.getSourceId());
             Card card = game.getCard(this.getTargetPointer().getFirst(game, source));
             if (card != null) {
-                UUID exileZoneId = CardUtil.getExileZoneId(game, source.getSourceId(), sourcePermanent.getZoneChangeCounter(game));
-                String exileZoneName = source.getSourceObject(game).getIdName();
-                controller.moveCardsToExile(card, source, game, true, exileZoneId, exileZoneName);
                 if (sourcePermanent != null) {
+                    UUID exileZoneId = CardUtil.getExileZoneId(game, source.getSourceId(), sourcePermanent.getZoneChangeCounter(game));
+                    String exileZoneName = sourcePermanent.getIdName();
+                    controller.moveCardsToExile(card, source, game, true, exileZoneId, exileZoneName);
                     sourcePermanent.imprint(this.getTargetPointer().getFirst(game, source), game);
+                } else {
+                    controller.moveCardsToExile(card, source, game, true, null, "");
                 }
             }
             return true;
@@ -104,10 +106,12 @@ class MirrorGolemEffect extends ContinuousEffectImpl {
     @Override
     public boolean apply(Game game, Ability source) {
         Permanent sourceObject = game.getPermanent(source.getSourceId());
+        if (sourceObject == null || sourceObject.getImprinted() == null) {
+            return false;
+        }
         UUID exileZoneId = CardUtil.getExileZoneId(game, source.getSourceId(), sourceObject.getZoneChangeCounter(game));
         ExileZone exileZone = game.getExile().getExileZone(exileZoneId);
-
-        if (sourceObject == null || sourceObject.getImprinted() == null || exileZone == null) {
+        if (exileZone == null) {
             return false;
         }