diff --git a/Mage.Sets/src/mage/cards/g/GargosViciousWatcher.java b/Mage.Sets/src/mage/cards/g/GargosViciousWatcher.java
new file mode 100644
index 0000000000..4f9f0ce1a5
--- /dev/null
+++ b/Mage.Sets/src/mage/cards/g/GargosViciousWatcher.java
@@ -0,0 +1,109 @@
+package mage.cards.g;
+
+import mage.MageInt;
+import mage.MageObject;
+import mage.abilities.TriggeredAbilityImpl;
+import mage.abilities.common.SimpleStaticAbility;
+import mage.abilities.effects.common.FightTargetSourceEffect;
+import mage.abilities.effects.common.cost.SpellsCostReductionControllerEffect;
+import mage.abilities.keyword.VigilanceAbility;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.*;
+import mage.filter.FilterCard;
+import mage.filter.FilterPermanent;
+import mage.filter.common.FilterCreaturePermanent;
+import mage.filter.predicate.mageobject.SubtypePredicate;
+import mage.filter.predicate.permanent.ControllerPredicate;
+import mage.game.Game;
+import mage.game.events.GameEvent;
+import mage.game.permanent.Permanent;
+import mage.game.stack.Spell;
+import mage.target.TargetPermanent;
+
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public final class GargosViciousWatcher extends CardImpl {
+
+    private static final FilterCard filter = new FilterCard("Hydra spells");
+
+    static {
+        filter.add(new SubtypePredicate(SubType.HYDRA));
+    }
+
+    public GargosViciousWatcher(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.CREATURE}, "{3}{G}{G}{G}");
+
+        this.addSuperType(SuperType.LEGENDARY);
+        this.subtype.add(SubType.HYDRA);
+        this.power = new MageInt(8);
+        this.toughness = new MageInt(7);
+
+        // Vigilance
+        this.addAbility(VigilanceAbility.getInstance());
+
+        // Hydra spells you cast cost {4} less to cast.
+        this.addAbility(new SimpleStaticAbility(new SpellsCostReductionControllerEffect(filter, 1)));
+
+        // Whenever a creature you control becomes the target of a spell, Gargos, Vicious Watcher fights up to one target creature you don't control.
+        this.addAbility(new GargosViciousWatcherTriggeredAbility());
+    }
+
+    private GargosViciousWatcher(final GargosViciousWatcher card) {
+        super(card);
+    }
+
+    @Override
+    public GargosViciousWatcher copy() {
+        return new GargosViciousWatcher(this);
+    }
+}
+
+class GargosViciousWatcherTriggeredAbility extends TriggeredAbilityImpl {
+
+    private static final FilterPermanent filter = new FilterCreaturePermanent("creature you don't control");
+
+    static {
+        filter.add(new ControllerPredicate(TargetController.NOT_YOU));
+    }
+
+    GargosViciousWatcherTriggeredAbility() {
+        super(Zone.BATTLEFIELD, new FightTargetSourceEffect());
+        this.addTarget(new TargetPermanent(0, 1, filter, false));
+    }
+
+    private GargosViciousWatcherTriggeredAbility(final GargosViciousWatcherTriggeredAbility ability) {
+        super(ability);
+    }
+
+    @Override
+    public GargosViciousWatcherTriggeredAbility copy() {
+        return new GargosViciousWatcherTriggeredAbility(this);
+    }
+
+    @Override
+    public boolean checkEventType(GameEvent event, Game game) {
+        return event.getType() == GameEvent.EventType.TARGETED;
+    }
+
+    @Override
+    public boolean checkTrigger(GameEvent event, Game game) {
+        Permanent permanent = game.getPermanent(event.getTargetId());
+        if (permanent == null
+                || !permanent.isControlledBy(this.controllerId)
+                || !permanent.isCreature()) {
+            return false;
+        }
+        MageObject object = game.getObject(event.getSourceId());
+        return object instanceof Spell;
+    }
+
+    @Override
+    public String getRule() {
+        return "Whenever a creature you control becomes the target of a spell, " +
+                "{this} fights up to one target creature you don't control.";
+    }
+}
diff --git a/Mage.Sets/src/mage/sets/CoreSet2020.java b/Mage.Sets/src/mage/sets/CoreSet2020.java
index cc6723595c..0c864a74f6 100644
--- a/Mage.Sets/src/mage/sets/CoreSet2020.java
+++ b/Mage.Sets/src/mage/sets/CoreSet2020.java
@@ -144,6 +144,7 @@ public final class CoreSet2020 extends ExpansionSet {
         cards.add(new SetCardInfo("Frilled Sea Serpent", 61, Rarity.COMMON, mage.cards.f.FrilledSeaSerpent.class));
         cards.add(new SetCardInfo("Frost Lynx", 62, Rarity.COMMON, mage.cards.f.FrostLynx.class));
         cards.add(new SetCardInfo("Fry", 140, Rarity.UNCOMMON, mage.cards.f.Fry.class));
+        cards.add(new SetCardInfo("Gargos, Vicious Watcher", 172, Rarity.RARE, mage.cards.g.GargosViciousWatcher.class));
         cards.add(new SetCardInfo("Gauntlets of Light", 17, Rarity.UNCOMMON, mage.cards.g.GauntletsOfLight.class));
         cards.add(new SetCardInfo("Gift of Paradise", 173, Rarity.COMMON, mage.cards.g.GiftOfParadise.class));
         cards.add(new SetCardInfo("Glaring Aegis", 18, Rarity.COMMON, mage.cards.g.GlaringAegis.class));