diff --git a/Mage.Sets/src/mage/cards/t/TerrorOfThePeaks.java b/Mage.Sets/src/mage/cards/t/TerrorOfThePeaks.java
new file mode 100644
index 0000000000..705677402b
--- /dev/null
+++ b/Mage.Sets/src/mage/cards/t/TerrorOfThePeaks.java
@@ -0,0 +1,128 @@
+package mage.cards.t;
+
+import mage.MageInt;
+import mage.abilities.Ability;
+import mage.abilities.Mode;
+import mage.abilities.SpellAbility;
+import mage.abilities.common.EntersBattlefieldAllTriggeredAbility;
+import mage.abilities.common.SimpleStaticAbility;
+import mage.abilities.costs.common.PayLifeCost;
+import mage.abilities.effects.common.DamageTargetEffect;
+import mage.abilities.effects.common.cost.CostModificationEffectImpl;
+import mage.abilities.keyword.FlyingAbility;
+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.permanent.Permanent;
+import mage.target.Target;
+
+import java.util.Collection;
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public final class TerrorOfThePeaks extends CardImpl {
+
+    public TerrorOfThePeaks(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.CREATURE}, "{3}{R}{R}");
+
+        this.subtype.add(SubType.DRAGON);
+        this.power = new MageInt(5);
+        this.toughness = new MageInt(4);
+
+        // Flying
+        this.addAbility(FlyingAbility.getInstance());
+
+        // Spells your opponents cast that target Terror of the Peaks cost an additional 3 life to cast.
+        this.addAbility(new SimpleStaticAbility(new TerrorOfThePeaksCostIncreaseEffect()));
+
+        // Whenever another creature enters the battlefield under your control, Terror of the Peaks deals damage equal to that creature's power to any target.
+        this.addAbility(new TerrorOfThePeaksTriggeredAbility());
+    }
+
+    private TerrorOfThePeaks(final TerrorOfThePeaks card) {
+        super(card);
+    }
+
+    @Override
+    public TerrorOfThePeaks copy() {
+        return new TerrorOfThePeaks(this);
+    }
+}
+
+class TerrorOfThePeaksCostIncreaseEffect extends CostModificationEffectImpl {
+
+    TerrorOfThePeaksCostIncreaseEffect() {
+        super(Duration.WhileOnBattlefield, Outcome.Benefit, CostModificationType.INCREASE_COST);
+        staticText = "Spells your opponents cast that target {this} cost an additional 3 life to cast";
+    }
+
+    private TerrorOfThePeaksCostIncreaseEffect(TerrorOfThePeaksCostIncreaseEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source, Ability abilityToModify) {
+        SpellAbility spellAbility = (SpellAbility) abilityToModify;
+        spellAbility.addCost(new PayLifeCost(3));
+        return true;
+    }
+
+    @Override
+    public boolean applies(Ability abilityToModify, Ability source, Game game) {
+        if (!(abilityToModify instanceof SpellAbility)
+                || !game.getOpponents(source.getControllerId()).contains(abilityToModify.getControllerId())) {
+            return false;
+        }
+        return abilityToModify
+                .getModes()
+                .getSelectedModes()
+                .stream()
+                .map(uuid -> abilityToModify.getModes().get(uuid))
+                .map(Mode::getTargets)
+                .flatMap(Collection::stream)
+                .map(Target::getTargets)
+                .flatMap(Collection::stream)
+                .anyMatch(uuid -> uuid.equals(source.getSourceId()));
+    }
+
+    @Override
+    public TerrorOfThePeaksCostIncreaseEffect copy() {
+        return new TerrorOfThePeaksCostIncreaseEffect(this);
+    }
+}
+
+class TerrorOfThePeaksTriggeredAbility extends EntersBattlefieldAllTriggeredAbility {
+
+    TerrorOfThePeaksTriggeredAbility() {
+        super(null, StaticFilters.FILTER_CONTROLLED_ANOTHER_CREATURE);
+    }
+
+    private TerrorOfThePeaksTriggeredAbility(final TerrorOfThePeaksTriggeredAbility ability) {
+        super(ability);
+    }
+
+    @Override
+    public boolean checkTrigger(GameEvent event, Game game) {
+        if (!super.checkTrigger(event, game)) {
+            return false;
+        }
+        Permanent permanent = game.getPermanent(event.getTargetId());
+        if (permanent == null) {
+            return false;
+        }
+        this.getEffects().clear();
+        this.addEffect(new DamageTargetEffect(permanent.getPower().getValue()));
+        return true;
+    }
+
+    @Override
+    public String getRule() {
+        return "Whenever another creature enters the battlefield under your control, " +
+                "{this} deals damage equal to that creature's power to any target.";
+    }
+}
diff --git a/Mage.Sets/src/mage/sets/CoreSet2021.java b/Mage.Sets/src/mage/sets/CoreSet2021.java
index 0ba15b56a2..6cff003ba8 100644
--- a/Mage.Sets/src/mage/sets/CoreSet2021.java
+++ b/Mage.Sets/src/mage/sets/CoreSet2021.java
@@ -269,6 +269,7 @@ public final class CoreSet2021 extends ExpansionSet {
         cards.add(new SetCardInfo("Temple of Mystery", 254, Rarity.RARE, mage.cards.t.TempleOfMystery.class));
         cards.add(new SetCardInfo("Temple of Silence", 255, Rarity.RARE, mage.cards.t.TempleOfSilence.class));
         cards.add(new SetCardInfo("Temple of Triumph", 256, Rarity.RARE, mage.cards.t.TempleOfTriumph.class));
+        cards.add(new SetCardInfo("Terror of the Peaks", 164, Rarity.MYTHIC, mage.cards.t.TerrorOfThePeaks.class));
         cards.add(new SetCardInfo("Thieves' Guild Enforcer", 125, Rarity.RARE, mage.cards.t.ThievesGuildEnforcer.class));
         cards.add(new SetCardInfo("Thornwood Falls", 257, Rarity.COMMON, mage.cards.t.ThornwoodFalls.class));
         cards.add(new SetCardInfo("Thrashing Brontodon", 209, Rarity.UNCOMMON, mage.cards.t.ThrashingBrontodon.class));