diff --git a/Mage.Sets/src/mage/cards/a/ArborealAlliance.java b/Mage.Sets/src/mage/cards/a/ArborealAlliance.java
new file mode 100644
index 00000000000..1697b52e705
--- /dev/null
+++ b/Mage.Sets/src/mage/cards/a/ArborealAlliance.java
@@ -0,0 +1,72 @@
+package mage.cards.a;
+
+import mage.abilities.Ability;
+import mage.abilities.common.AttacksWithCreaturesTriggeredAbility;
+import mage.abilities.common.EntersBattlefieldTriggeredAbility;
+import mage.abilities.dynamicvalue.common.ManacostVariableValue;
+import mage.abilities.effects.OneShotEffect;
+import mage.abilities.effects.common.CreateTokenEffect;
+import mage.abilities.effects.common.PopulateEffect;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.CardType;
+import mage.constants.Outcome;
+import mage.constants.SubType;
+import mage.filter.FilterPermanent;
+import mage.game.Game;
+import mage.game.permanent.token.SylvanOfferingTreefolkToken;
+
+import java.util.UUID;
+
+/**
+ * @author Susucr
+ */
+public final class ArborealAlliance extends CardImpl {
+
+    private static final FilterPermanent filter = new FilterPermanent(SubType.ELF, "Elves");
+
+    public ArborealAlliance(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.ENCHANTMENT}, "{X}{G}{G}");
+
+        // When Arboreal Alliance enters the battlefield, create an X/X green Treefolk creature token.
+        this.addAbility(new EntersBattlefieldTriggeredAbility(new ArborealAllianceEffect()));
+
+        // Whenever you attack with one or more Elves, populate.
+        this.addAbility(new AttacksWithCreaturesTriggeredAbility(
+                new PopulateEffect(), 1, filter
+        ));
+    }
+
+    private ArborealAlliance(final ArborealAlliance card) {
+        super(card);
+    }
+
+    @Override
+    public ArborealAlliance copy() {
+        return new ArborealAlliance(this);
+    }
+}
+
+class ArborealAllianceEffect extends OneShotEffect {
+
+    ArborealAllianceEffect() {
+        super(Outcome.PutCreatureInPlay);
+        staticText = "create an X/X green Treefolk creature token";
+    }
+
+    private ArborealAllianceEffect(final ArborealAllianceEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public ArborealAllianceEffect copy() {
+        return new ArborealAllianceEffect(this);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        return new CreateTokenEffect(
+                new SylvanOfferingTreefolkToken(ManacostVariableValue.ETB.calculate(game, source, this))
+        ).apply(game, source);
+    }
+}
\ No newline at end of file
diff --git a/Mage.Sets/src/mage/sets/TalesOfMiddleEarthCommander.java b/Mage.Sets/src/mage/sets/TalesOfMiddleEarthCommander.java
index d93d07a41a0..b5613502991 100644
--- a/Mage.Sets/src/mage/sets/TalesOfMiddleEarthCommander.java
+++ b/Mage.Sets/src/mage/sets/TalesOfMiddleEarthCommander.java
@@ -22,6 +22,7 @@ public final class TalesOfMiddleEarthCommander extends ExpansionSet {
         cards.add(new SetCardInfo("Anguished Unmaking", 265, Rarity.RARE, mage.cards.a.AnguishedUnmaking.class));
         cards.add(new SetCardInfo("Aragorn, King of Gondor", 5, Rarity.MYTHIC, mage.cards.a.AragornKingOfGondor.class));
         cards.add(new SetCardInfo("Arbor Elf", 232, Rarity.COMMON, mage.cards.a.ArborElf.class));
+        cards.add(new SetCardInfo("Arboreal Alliance", 497, Rarity.RARE, mage.cards.a.ArborealAlliance.class));
         cards.add(new SetCardInfo("Arcane Denial", 184, Rarity.COMMON, mage.cards.a.ArcaneDenial.class));
         cards.add(new SetCardInfo("Arcane Signet", 273, Rarity.COMMON, mage.cards.a.ArcaneSignet.class));
         cards.add(new SetCardInfo("Archivist of Gondor", 18, Rarity.RARE, mage.cards.a.ArchivistOfGondor.class));