diff --git a/forge-game/src/main/java/forge/game/staticability/StaticAbility.java b/forge-game/src/main/java/forge/game/staticability/StaticAbility.java
index 275c91fb..1afa525b 100644
--- a/forge-game/src/main/java/forge/game/staticability/StaticAbility.java
+++ b/forge-game/src/main/java/forge/game/staticability/StaticAbility.java
@@ -24,6 +24,7 @@ import forge.card.MagicColor;
 import forge.game.CardTraitBase;
 import forge.game.Game;
 import forge.game.GameEntity;
+import forge.game.GameStage;
 import forge.game.ability.AbilityUtils;
 import forge.game.card.Card;
 import forge.game.card.CardCollection;
@@ -579,6 +580,15 @@ public class StaticAbility extends CardTraitBase implements Comparable<StaticAbi
             }
         }
 
+        if (hasParam("GameStage")) {
+            String[] stageDefs = TextUtil.split(getParam("GameStage"), ',');
+            boolean isRelevantStage = false;
+            for (String stage : stageDefs) {
+                isRelevantStage |= (game.getAge() == GameStage.valueOf(stage));
+            }
+            return isRelevantStage;
+        }
+
         if (hasParam("Presence")) {
             if (hostCard.getCastFrom() == null || hostCard.getCastSA() == null)
                 return false;
diff --git a/forge-gui/res/cardsfolder/v/vampire_nocturnus_avatar.txt b/forge-gui/res/cardsfolder/v/vampire_nocturnus_avatar.txt
index d23184bb..78b7c18d 100644
--- a/forge-gui/res/cardsfolder/v/vampire_nocturnus_avatar.txt
+++ b/forge-gui/res/cardsfolder/v/vampire_nocturnus_avatar.txt
@@ -2,6 +2,6 @@ Name:Vampire Nocturnus Avatar
 ManaCost:no cost
 Types:Vanguard
 HandLifeModifier:-1/-2
-S:Mode$ Continuous | EffectZone$ Command | Affected$ Card.TopLibrary+YouCtrl | AffectedZone$ Library | MayLookAt$ Player | Description$ Play with the top card of your library revealed.
+S:Mode$ Continuous | EffectZone$ Command | GameStage$ Play | Affected$ Card.TopLibrary+YouCtrl | AffectedZone$ Library | MayLookAt$ Player | Description$ Play with the top card of your library revealed.
 S:Mode$ Continuous | EffectZone$ Command | Affected$ Creature.Black+YouCtrl | AddPower$ 2 | AddToughness$ 1 | TopCardOfLibraryIs$ Card.Black | Description$ As long as the top card of your library is black, black creatures you control get +2/+1.
 Oracle:Hand -1, life -2\nPlay with the top card of your library revealed.\nAs long as the top card of your library is black, black creatures you control get +2/+1.