diff --git a/Mage.Sets/src/mage/cards/e/ExpandingOoze.java b/Mage.Sets/src/mage/cards/e/ExpandingOoze.java
new file mode 100644
index 00000000000..1550ee8dc4e
--- /dev/null
+++ b/Mage.Sets/src/mage/cards/e/ExpandingOoze.java
@@ -0,0 +1,56 @@
+package mage.cards.e;
+
+import mage.MageInt;
+import mage.abilities.Ability;
+import mage.abilities.common.AttacksTriggeredAbility;
+import mage.abilities.effects.common.counter.AddCountersTargetEffect;
+import mage.abilities.keyword.AdaptAbility;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.CardType;
+import mage.constants.SubType;
+import mage.counters.CounterType;
+import mage.filter.FilterPermanent;
+import mage.filter.common.FilterControlledCreaturePermanent;
+import mage.filter.predicate.permanent.ModifiedPredicate;
+import mage.target.TargetPermanent;
+
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public final class ExpandingOoze extends CardImpl {
+
+    private static final FilterPermanent filter
+            = new FilterControlledCreaturePermanent("modified creature you control");
+
+    static {
+        filter.add(ModifiedPredicate.instance);
+    }
+
+    public ExpandingOoze(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.CREATURE}, "{1}{B}{G}");
+
+        this.subtype.add(SubType.OOZE);
+        this.power = new MageInt(3);
+        this.toughness = new MageInt(3);
+
+        // {B}{G}: Adapt 1.
+        this.addAbility(new AdaptAbility(1, "{B}{G}"));
+
+        // Whenever Expanding Ooze attacks, put a +1/+1 counter on target modified creature you control.
+        Ability ability = new AttacksTriggeredAbility(new AddCountersTargetEffect(CounterType.P1P1.createInstance()));
+        ability.addTarget(new TargetPermanent(filter));
+        this.addAbility(ability);
+    }
+
+    private ExpandingOoze(final ExpandingOoze card) {
+        super(card);
+    }
+
+    @Override
+    public ExpandingOoze copy() {
+        return new ExpandingOoze(this);
+    }
+}
diff --git a/Mage.Sets/src/mage/sets/ModernHorizons3.java b/Mage.Sets/src/mage/sets/ModernHorizons3.java
index bfca387dc96..f563d2219c5 100644
--- a/Mage.Sets/src/mage/sets/ModernHorizons3.java
+++ b/Mage.Sets/src/mage/sets/ModernHorizons3.java
@@ -47,6 +47,7 @@ public final class ModernHorizons3 extends ExpansionSet {
         cards.add(new SetCardInfo("Emrakul, the World Anew", 6, Rarity.MYTHIC, mage.cards.e.EmrakulTheWorldAnew.class));
         cards.add(new SetCardInfo("Estrid's Invocation", 269, Rarity.RARE, mage.cards.e.EstridsInvocation.class));
         cards.add(new SetCardInfo("Evolution Witness", 151, Rarity.COMMON, mage.cards.e.EvolutionWitness.class));
+        cards.add(new SetCardInfo("Expanding Ooze", 184, Rarity.COMMON, mage.cards.e.ExpandingOoze.class));
         cards.add(new SetCardInfo("Flare of Cultivation", 154, Rarity.RARE, mage.cards.f.FlareOfCultivation.class));
         cards.add(new SetCardInfo("Flare of Denial", 62, Rarity.RARE, mage.cards.f.FlareOfDenial.class));
         cards.add(new SetCardInfo("Flare of Duplication", 119, Rarity.RARE, mage.cards.f.FlareOfDuplication.class));