diff --git a/Mage/src/main/java/mage/game/events/GameEvent.java b/Mage/src/main/java/mage/game/events/GameEvent.java
index 489c3c16810..446d5505861 100644
--- a/Mage/src/main/java/mage/game/events/GameEvent.java
+++ b/Mage/src/main/java/mage/game/events/GameEvent.java
@@ -72,8 +72,8 @@ public class GameEvent implements Serializable {
          flag        not used for this event
          */
         ZONE_CHANGE,
-        ZONE_CHANGE_GROUP,
-        ZONE_CHANGE_BATCH,
+        ZONE_CHANGE_GROUP, // between two specific zones only; TODO: rework all usages to ZONE_CHANGE_BATCH instead, see #11895
+        ZONE_CHANGE_BATCH, // all zone changes that occurred from a single effect
         DRAW_CARDS, // event calls for multi draws only (if player draws 2+ cards at once)
         DRAW_CARD, DREW_CARD,
         EXPLORE, EXPLORED, // targetId is exploring permanent, playerId is its controller