diff --git a/Mage.Sets/src/mage/cards/a/ArgivianAvenger.java b/Mage.Sets/src/mage/cards/a/ArgivianAvenger.java
new file mode 100644
index 0000000000..15763bba10
--- /dev/null
+++ b/Mage.Sets/src/mage/cards/a/ArgivianAvenger.java
@@ -0,0 +1,100 @@
+package mage.cards.a;
+
+import mage.MageInt;
+import mage.abilities.Ability;
+import mage.abilities.common.SimpleActivatedAbility;
+import mage.abilities.costs.mana.GenericManaCost;
+import mage.abilities.effects.OneShotEffect;
+import mage.abilities.effects.common.continuous.BoostSourceEffect;
+import mage.abilities.effects.common.continuous.GainAbilitySourceEffect;
+import mage.abilities.keyword.DeathtouchAbility;
+import mage.abilities.keyword.FlyingAbility;
+import mage.abilities.keyword.HasteAbility;
+import mage.abilities.keyword.VigilanceAbility;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.choices.Choice;
+import mage.choices.ChoiceImpl;
+import mage.constants.CardType;
+import mage.constants.Duration;
+import mage.constants.Outcome;
+import mage.constants.SubType;
+import mage.game.Game;
+import mage.game.permanent.Permanent;
+import mage.players.Player;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public final class ArgivianAvenger extends CardImpl {
+
+    public ArgivianAvenger(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.ARTIFACT, CardType.CREATURE}, "{6}");
+
+        this.subtype.add(SubType.SHAPESHIFTER);
+        this.power = new MageInt(5);
+        this.toughness = new MageInt(5);
+
+        // {1}: Until end of turn, Argivian Avenger gets -1/-1 and gains your choice of flying, vigilance, deathtouch, or haste.
+        this.addAbility(new SimpleActivatedAbility(new ArgivianAvengerEffect(), new GenericManaCost(1)));
+    }
+
+    private ArgivianAvenger(final ArgivianAvenger card) {
+        super(card);
+    }
+
+    @Override
+    public ArgivianAvenger copy() {
+        return new ArgivianAvenger(this);
+    }
+}
+
+class ArgivianAvengerEffect extends OneShotEffect {
+
+    private static final Map<String, Ability> abilityMap = new HashMap<>();
+
+    static {
+        abilityMap.put("Flying", FlyingAbility.getInstance());
+        abilityMap.put("Vigilance", VigilanceAbility.getInstance());
+        abilityMap.put("Deathtouch", DeathtouchAbility.getInstance());
+        abilityMap.put("Haste", HasteAbility.getInstance());
+    }
+
+    ArgivianAvengerEffect() {
+        super(Outcome.Benefit);
+        staticText = "until end of turn, {this} gets -1/-1 " +
+                "and gains your choice of flying, vigilance, deathtouch, or haste";
+    }
+
+    private ArgivianAvengerEffect(final ArgivianAvengerEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public ArgivianAvengerEffect copy() {
+        return new ArgivianAvengerEffect(this);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        Player player = game.getPlayer(source.getControllerId());
+        Permanent permanent = source.getSourcePermanentIfItStillExists(game);
+        if (player == null || permanent == null) {
+            return false;
+        }
+        game.addEffect(new BoostSourceEffect(-1, -1, Duration.EndOfTurn), source);
+        Choice choice = new ChoiceImpl(true);
+        choice.setMessage("Choose an ability");
+        choice.setChoices(abilityMap.keySet());
+        player.choose(outcome, choice, game);
+        Ability ability = abilityMap.getOrDefault(choice.getChoice(), null);
+        if (ability != null) {
+            game.addEffect(new GainAbilitySourceEffect(ability, Duration.EndOfTurn), source);
+        }
+        return true;
+    }
+}
diff --git a/Mage.Sets/src/mage/sets/TheBrothersWar.java b/Mage.Sets/src/mage/sets/TheBrothersWar.java
index 90faec5d78..cbf9c53843 100644
--- a/Mage.Sets/src/mage/sets/TheBrothersWar.java
+++ b/Mage.Sets/src/mage/sets/TheBrothersWar.java
@@ -28,6 +28,7 @@ public final class TheBrothersWar extends ExpansionSet {
         cards.add(new SetCardInfo("Ambush Paratrooper", 3, Rarity.COMMON, mage.cards.a.AmbushParatrooper.class));
         cards.add(new SetCardInfo("Arbalest Engineers", 206, Rarity.UNCOMMON, mage.cards.a.ArbalestEngineers.class));
         cards.add(new SetCardInfo("Arcane Proxy", 75, Rarity.MYTHIC, mage.cards.a.ArcaneProxy.class));
+        cards.add(new SetCardInfo("Argivian Avenger", 232, Rarity.UNCOMMON, mage.cards.a.ArgivianAvenger.class));
         cards.add(new SetCardInfo("Argoth, Sanctum of Nature", "256a", Rarity.RARE, mage.cards.a.ArgothSanctumOfNature.class));
         cards.add(new SetCardInfo("Argothian Opportunist", 167, Rarity.COMMON, mage.cards.a.ArgothianOpportunist.class));
         cards.add(new SetCardInfo("Ashnod's Harvester", 117, Rarity.UNCOMMON, mage.cards.a.AshnodsHarvester.class));