diff --git a/Mage.Sets/src/mage/cards/l/LivioOathswornSentinel.java b/Mage.Sets/src/mage/cards/l/LivioOathswornSentinel.java
new file mode 100644
index 0000000000..f09e409f14
--- /dev/null
+++ b/Mage.Sets/src/mage/cards/l/LivioOathswornSentinel.java
@@ -0,0 +1,146 @@
+package mage.cards.l;
+
+import mage.MageInt;
+import mage.abilities.Ability;
+import mage.abilities.common.SimpleActivatedAbility;
+import mage.abilities.costs.common.TapSourceCost;
+import mage.abilities.costs.mana.ManaCostsImpl;
+import mage.abilities.effects.OneShotEffect;
+import mage.abilities.keyword.PartnerAbility;
+import mage.cards.Card;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.*;
+import mage.counters.CounterType;
+import mage.filter.FilterPermanent;
+import mage.filter.common.FilterCreaturePermanent;
+import mage.filter.predicate.permanent.AnotherPredicate;
+import mage.game.Game;
+import mage.game.permanent.Permanent;
+import mage.players.Player;
+import mage.target.TargetPermanent;
+
+import java.util.Objects;
+import java.util.Set;
+import java.util.UUID;
+import java.util.stream.Collectors;
+
+/**
+ * @author TheElk801
+ */
+public final class LivioOathswornSentinel extends CardImpl {
+
+    private static final FilterPermanent filter = new FilterCreaturePermanent("another creature");
+
+    static {
+        filter.add(AnotherPredicate.instance);
+    }
+
+    public LivioOathswornSentinel(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.CREATURE}, "{1}{W}");
+
+        this.addSuperType(SuperType.LEGENDARY);
+        this.subtype.add(SubType.HUMAN);
+        this.subtype.add(SubType.KNIGHT);
+        this.power = new MageInt(2);
+        this.toughness = new MageInt(2);
+
+        // {1}{W}: Choose another target creature. Its controller may exile it with an aegis counter on it.
+        Ability ability = new SimpleActivatedAbility(
+                new LivioOathswornSentinelExileEffect(), new ManaCostsImpl("{1}{W}")
+        );
+        ability.addTarget(new TargetPermanent(filter));
+        this.addAbility(ability);
+
+        // {2}{W}, {T}: Return all exiled cards with aegis counters on them to the battlefield under their owners' control.
+        ability = new SimpleActivatedAbility(new LivioOathswornSentinelReturnEffect(), new ManaCostsImpl("{2}{W}"));
+        ability.addCost(new TapSourceCost());
+        this.addAbility(ability);
+
+        // Partner
+        this.addAbility(PartnerAbility.getInstance());
+    }
+
+    private LivioOathswornSentinel(final LivioOathswornSentinel card) {
+        super(card);
+    }
+
+    @Override
+    public LivioOathswornSentinel copy() {
+        return new LivioOathswornSentinel(this);
+    }
+}
+
+class LivioOathswornSentinelExileEffect extends OneShotEffect {
+
+    LivioOathswornSentinelExileEffect() {
+        super(Outcome.Exile);
+        staticText = "choose another target creature. Its controller may exile it with an aegis counter on it";
+    }
+
+    private LivioOathswornSentinelExileEffect(final LivioOathswornSentinelExileEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public LivioOathswornSentinelExileEffect copy() {
+        return new LivioOathswornSentinelExileEffect(this);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        Permanent permanent = game.getPermanent(source.getFirstTarget());
+        if (permanent == null) {
+            return false;
+        }
+        Player player = game.getPlayer(permanent.getControllerId());
+        if (player == null || !player.chooseUse(
+                outcome, "Exile " + permanent.getName() + " with an aegis counter on it?", source, game
+        )) {
+            return false;
+        }
+        Card card = game.getCard(permanent.getId());
+        player.moveCards(permanent, Zone.EXILED, source, game);
+        if (card == null || game.getState().getZone(card.getId()) != Zone.EXILED) {
+            return false;
+        }
+        card.addCounters(CounterType.AEGIS.createInstance(), source, game);
+        return true;
+    }
+}
+
+class LivioOathswornSentinelReturnEffect extends OneShotEffect {
+
+    LivioOathswornSentinelReturnEffect() {
+        super(Outcome.Benefit);
+        staticText = "return all exiled cards with aegis counters on them to the battlefield under their owners' control";
+    }
+
+    private LivioOathswornSentinelReturnEffect(final LivioOathswornSentinelReturnEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public LivioOathswornSentinelReturnEffect copy() {
+        return new LivioOathswornSentinelReturnEffect(this);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        Player player = game.getPlayer(source.getControllerId());
+        if (player == null) {
+            return false;
+        }
+        Set<Card> cards = game
+                .getExile()
+                .getAllCards(game)
+                .stream()
+                .filter(Objects::nonNull)
+                .filter(card -> card.getCounters(game).containsKey(CounterType.AEGIS))
+                .collect(Collectors.toSet());
+        return player.moveCards(
+                cards, Zone.BATTLEFIELD, source, game, false,
+                false, true, null
+        );
+    }
+}
diff --git a/Mage.Sets/src/mage/sets/CommanderLegends.java b/Mage.Sets/src/mage/sets/CommanderLegends.java
index 1e55c235ae..9376473f30 100644
--- a/Mage.Sets/src/mage/sets/CommanderLegends.java
+++ b/Mage.Sets/src/mage/sets/CommanderLegends.java
@@ -91,6 +91,7 @@ public final class CommanderLegends extends ExpansionSet {
         cards.add(new SetCardInfo("Kor Cartographer", 30, Rarity.COMMON, mage.cards.k.KorCartographer.class));
         cards.add(new SetCardInfo("Krark, the Thumbless", 189, Rarity.RARE, mage.cards.k.KrarkTheThumbless.class));
         cards.add(new SetCardInfo("Kydele, Chosen of Kruphix", 524, Rarity.MYTHIC, mage.cards.k.KydeleChosenOfKruphix.class));
+        cards.add(new SetCardInfo("Livio, Oathsworn Sentinel", 31, Rarity.RARE, mage.cards.l.LivioOathswornSentinel.class));
         cards.add(new SetCardInfo("Ludevic, Necro-Alchemist", 525, Rarity.MYTHIC, mage.cards.l.LudevicNecroAlchemist.class));
         cards.add(new SetCardInfo("Maelstrom Colossus", 322, Rarity.COMMON, mage.cards.m.MaelstromColossus.class));
         cards.add(new SetCardInfo("Maelstrom Wanderer", 526, Rarity.MYTHIC, mage.cards.m.MaelstromWanderer.class));
diff --git a/Mage/src/main/java/mage/counters/CounterType.java b/Mage/src/main/java/mage/counters/CounterType.java
index 9492c1d1eb..93c9c57164 100644
--- a/Mage/src/main/java/mage/counters/CounterType.java
+++ b/Mage/src/main/java/mage/counters/CounterType.java
@@ -12,6 +12,7 @@ import mage.game.Game;
  */
 public enum CounterType {
 
+    AEGIS("aegis"),
     AGE("age"),
     AIM("aim"),
     ARROW("arrow"),