diff --git a/Mage.Sets/src/mage/cards/m/MonologueTax.java b/Mage.Sets/src/mage/cards/m/MonologueTax.java
new file mode 100644
index 0000000000..2aece48210
--- /dev/null
+++ b/Mage.Sets/src/mage/cards/m/MonologueTax.java
@@ -0,0 +1,73 @@
+package mage.cards.m;
+
+import mage.abilities.TriggeredAbilityImpl;
+import mage.abilities.effects.common.CreateTokenEffect;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.CardType;
+import mage.constants.Zone;
+import mage.game.Game;
+import mage.game.events.GameEvent;
+import mage.game.permanent.token.TreasureToken;
+import mage.players.Player;
+import mage.watchers.common.CastSpellLastTurnWatcher;
+
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public final class MonologueTax extends CardImpl {
+
+    public MonologueTax(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.ENCHANTMENT}, "{2}{W}");
+
+        // Whenever an opponent casts their second spell each turn, you create a Treasure token.
+        this.addAbility(new MonologueTaxTriggeredAbility());
+    }
+
+    private MonologueTax(final MonologueTax card) {
+        super(card);
+    }
+
+    @Override
+    public MonologueTax copy() {
+        return new MonologueTax(this);
+    }
+}
+
+class MonologueTaxTriggeredAbility extends TriggeredAbilityImpl {
+
+    MonologueTaxTriggeredAbility() {
+        super(Zone.BATTLEFIELD, new CreateTokenEffect(new TreasureToken()));
+    }
+
+    private MonologueTaxTriggeredAbility(final MonologueTaxTriggeredAbility ability) {
+        super(ability);
+    }
+
+    @Override
+    public boolean checkEventType(GameEvent event, Game game) {
+        return event.getType() == GameEvent.EventType.SPELL_CAST;
+    }
+
+    @Override
+    public boolean checkTrigger(GameEvent event, Game game) {
+        Player player = game.getPlayer(getControllerId());
+        CastSpellLastTurnWatcher watcher = game.getState().getWatcher(CastSpellLastTurnWatcher.class);
+        return player != null
+                && watcher != null
+                && player.hasOpponent(event.getPlayerId(), game)
+                && watcher.getAmountOfSpellsPlayerCastOnCurrentTurn(event.getPlayerId()) == 2;
+    }
+
+    @Override
+    public MonologueTaxTriggeredAbility copy() {
+        return new MonologueTaxTriggeredAbility(this);
+    }
+
+    @Override
+    public String getRule() {
+        return "Whenever an opponent casts their second spell each turn, you create a Treasure token.";
+    }
+}
diff --git a/Mage.Sets/src/mage/sets/Commander2021Edition.java b/Mage.Sets/src/mage/sets/Commander2021Edition.java
index 3a07b47467..04f5baf966 100644
--- a/Mage.Sets/src/mage/sets/Commander2021Edition.java
+++ b/Mage.Sets/src/mage/sets/Commander2021Edition.java
@@ -22,5 +22,6 @@ public final class Commander2021Edition extends ExpansionSet {
 
         cards.add(new SetCardInfo("Angel of the Ruins", 11, Rarity.RARE, mage.cards.a.AngelOfTheRuins.class));
         cards.add(new SetCardInfo("Excavation Technique", 16, Rarity.RARE, mage.cards.e.ExcavationTechnique.class));
+        cards.add(new SetCardInfo("Monologue Tax", 19, Rarity.RARE, mage.cards.m.MonologueTax.class));
     }
 }