Implemented Aggressive Mammoth

Mage.Sets/src/mage/cards/a/AggressiveMammoth.java

@@ -0,0 +1,52 @@
+package mage.cards.a;
+
+import java.util.UUID;
+import mage.MageInt;
+import mage.abilities.common.SimpleStaticAbility;
+import mage.abilities.effects.common.continuous.GainAbilityControlledEffect;
+import mage.constants.SubType;
+import mage.abilities.keyword.TrampleAbility;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.CardType;
+import mage.constants.Duration;
+import mage.constants.Zone;
+import mage.filter.StaticFilters;
+
+/**
+ *
+ * @author TheElk801
+ */
+public final class AggressiveMammoth extends CardImpl {
+
+    public AggressiveMammoth(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.CREATURE}, "{3}{G}{G}{G}");
+
+        this.subtype.add(SubType.ELEPHANT);
+        this.power = new MageInt(8);
+        this.toughness = new MageInt(8);
+
+        // Trample
+        this.addAbility(TrampleAbility.getInstance());
+
+        // Other creatures you control have trample.
+        this.addAbility(new SimpleStaticAbility(
+                Zone.BATTLEFIELD,
+                new GainAbilityControlledEffect(
+                        TrampleAbility.getInstance(),
+                        Duration.WhileOnBattlefield,
+                        StaticFilters.FILTER_CONTROLLED_CREATURES,
+                        true
+                )
+        ));
+    }
+
+    public AggressiveMammoth(final AggressiveMammoth card) {
+        super(card);
+    }
+
+    @Override
+    public AggressiveMammoth copy() {
+        return new AggressiveMammoth(this);
+    }
+}

Mage.Sets/src/mage/sets/CoreSet2019.java

@@ -26,6 +26,7 @@ public final class CoreSet2019 extends ExpansionSet {
         this.ratioBoosterMythic = 8;
         this.maxCardNumberInBooster = 280;
         cards.add(new SetCardInfo("Act of Treason", 127, Rarity.COMMON, mage.cards.a.ActOfTreason.class));
+        cards.add(new SetCardInfo("Aggressive Mammoth", 302, Rarity.RARE, mage.cards.a.AggressiveMammoth.class));
         cards.add(new SetCardInfo("Air Elemental", 308, Rarity.UNCOMMON, mage.cards.a.AirElemental.class));
         cards.add(new SetCardInfo("Anticipate", 44, Rarity.COMMON, mage.cards.a.Anticipate.class));
         cards.add(new SetCardInfo("Apex of Power", 129, Rarity.MYTHIC, mage.cards.a.ApexOfPower.class));