diff --git a/Mage.Sets/src/mage/cards/d/DungeonDelver.java b/Mage.Sets/src/mage/cards/d/DungeonDelver.java
new file mode 100644
index 00000000000..66490849c26
--- /dev/null
+++ b/Mage.Sets/src/mage/cards/d/DungeonDelver.java
@@ -0,0 +1,78 @@
+package mage.cards.d;
+
+import mage.abilities.Ability;
+import mage.abilities.common.SimpleStaticAbility;
+import mage.abilities.effects.ReplacementEffectImpl;
+import mage.abilities.effects.common.continuous.GainAbilityAllEffect;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.*;
+import mage.filter.StaticFilters;
+import mage.game.Game;
+import mage.game.events.GameEvent;
+import mage.game.events.NumberOfTriggersEvent;
+
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public final class DungeonDelver extends CardImpl {
+
+    public DungeonDelver(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.ENCHANTMENT}, "{1}{U}");
+
+        this.addSuperType(SuperType.LEGENDARY);
+        this.subtype.add(SubType.BACKGROUND);
+
+        // Commander creatures you own have "Room abilities of dungeons you own trigger an additional time."
+        this.addAbility(new SimpleStaticAbility(new GainAbilityAllEffect(
+                new SimpleStaticAbility(new DungeonDelverEffect()),
+                Duration.WhileOnBattlefield, StaticFilters.FILTER_CREATURES_OWNED_COMMANDER
+        )));
+    }
+
+    private DungeonDelver(final DungeonDelver card) {
+        super(card);
+    }
+
+    @Override
+    public DungeonDelver copy() {
+        return new DungeonDelver(this);
+    }
+}
+
+class DungeonDelverEffect extends ReplacementEffectImpl {
+
+    DungeonDelverEffect() {
+        super(Duration.WhileOnBattlefield, Outcome.Benefit);
+        staticText = "room abilities of dungeons you own trigger an additional time";
+    }
+
+    private DungeonDelverEffect(final DungeonDelverEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public DungeonDelverEffect copy() {
+        return new DungeonDelverEffect(this);
+    }
+
+    @Override
+    public boolean checksEventType(GameEvent event, Game game) {
+        return event.getType() == GameEvent.EventType.NUMBER_OF_TRIGGERS;
+    }
+
+    @Override
+    public boolean applies(GameEvent event, Ability source, Game game) {
+        GameEvent gameEvent = ((NumberOfTriggersEvent) event).getSourceEvent();
+        return gameEvent.getType() == GameEvent.EventType.ROOM_ENTERED
+                && source.isControlledBy(gameEvent.getPlayerId());
+    }
+
+    @Override
+    public boolean replaceEvent(GameEvent event, Ability source, Game game) {
+        event.setAmount(event.getAmount() + 1);
+        return false;
+    }
+}
diff --git a/Mage.Sets/src/mage/sets/CommanderLegendsBattleForBaldursGate.java b/Mage.Sets/src/mage/sets/CommanderLegendsBattleForBaldursGate.java
index 270983a626b..5b7c458725f 100644
--- a/Mage.Sets/src/mage/sets/CommanderLegendsBattleForBaldursGate.java
+++ b/Mage.Sets/src/mage/sets/CommanderLegendsBattleForBaldursGate.java
@@ -35,6 +35,7 @@ public final class CommanderLegendsBattleForBaldursGate extends ExpansionSet {
         cards.add(new SetCardInfo("Command Tower", 351, Rarity.COMMON, mage.cards.c.CommandTower.class));
         cards.add(new SetCardInfo("Cultist of the Absolute", 123, Rarity.RARE, mage.cards.c.CultistOfTheAbsolute.class));
         cards.add(new SetCardInfo("Dread Linnorm", 225, Rarity.COMMON, mage.cards.d.DreadLinnorm.class));
+        cards.add(new SetCardInfo("Dungeon Delver", 67, Rarity.UNCOMMON, mage.cards.d.DungeonDelver.class));
         cards.add(new SetCardInfo("Dungeoneer's Pack", 312, Rarity.UNCOMMON, mage.cards.d.DungeoneersPack.class));
         cards.add(new SetCardInfo("Elder Brain", 125, Rarity.RARE, mage.cards.e.ElderBrain.class));
         cards.add(new SetCardInfo("Elminster's Simulacrum", 561, Rarity.MYTHIC, mage.cards.e.ElminstersSimulacrum.class));