diff --git a/Mage.Sets/src/mage/cards/m/Mordenkainen.java b/Mage.Sets/src/mage/cards/m/Mordenkainen.java
new file mode 100644
index 00000000000..e55f74548f2
--- /dev/null
+++ b/Mage.Sets/src/mage/cards/m/Mordenkainen.java
@@ -0,0 +1,117 @@
+package mage.cards.m;
+
+import java.util.UUID;
+
+import mage.abilities.Ability;
+import mage.abilities.LoyaltyAbility;
+import mage.abilities.common.PlaneswalkerEntersWithLoyaltyCountersAbility;
+import mage.abilities.effects.OneShotEffect;
+import mage.abilities.effects.common.CreateTokenEffect;
+import mage.abilities.effects.common.GetEmblemEffect;
+import mage.cards.*;
+import mage.constants.*;
+import mage.game.Game;
+import mage.game.command.emblems.MordenkainenEmblem;
+import mage.game.permanent.token.DogIllusionToken;
+import mage.players.Player;
+import mage.target.common.TargetCardInHand;
+
+/**
+ *
+ * @author weirddan455
+ */
+public final class Mordenkainen extends CardImpl {
+
+    public Mordenkainen(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.PLANESWALKER}, "{4}{U}{U}");
+
+        this.addSuperType(SuperType.LEGENDARY);
+        this.subtype.add(SubType.MORDENKAINEN);
+        this.addAbility(new PlaneswalkerEntersWithLoyaltyCountersAbility(5));
+
+        // +2: Draw two cards, then put a card from your hand on the bottom of your library.
+        this.addAbility(new LoyaltyAbility(new MordenkainenDrawEffect(), 2));
+
+        // −2: Create a blue Dog Illusion creature token with "This creature's power and toughness are each equal to twice the number of cards in your hand."
+        this.addAbility(new LoyaltyAbility(new CreateTokenEffect(new DogIllusionToken()), -2));
+
+        // −10: Exchange your hand and library, then shuffle. You get an emblem with "You have no maximum hand size."
+        Ability ability = new LoyaltyAbility(new MordenkainenExchangeEffect(), -10);
+        ability.addEffect(new GetEmblemEffect(new MordenkainenEmblem()));
+        this.addAbility(ability);
+    }
+
+    private Mordenkainen(final Mordenkainen card) {
+        super(card);
+    }
+
+    @Override
+    public Mordenkainen copy() {
+        return new Mordenkainen(this);
+    }
+}
+
+class MordenkainenDrawEffect extends OneShotEffect {
+
+    public MordenkainenDrawEffect() {
+        super(Outcome.DrawCard);
+        this.staticText = "Draw two cards, then put a card from your hand on the bottom of your library";
+    }
+
+    private MordenkainenDrawEffect(final MordenkainenDrawEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public MordenkainenDrawEffect copy() {
+        return new MordenkainenDrawEffect(this);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        Player controller = game.getPlayer(source.getControllerId());
+        if (controller == null) {
+            return false;
+        }
+        controller.drawCards(2, source, game);
+        TargetCardInHand target = new TargetCardInHand();
+        if (controller.chooseTarget(Outcome.Discard, target, source, game)) {
+            Card card = game.getCard(target.getFirstTarget());
+            if (card != null) {
+                controller.moveCardToLibraryWithInfo(card, source, game, Zone.HAND, false, false);
+            }
+        }
+        return true;
+    }
+}
+
+class MordenkainenExchangeEffect extends OneShotEffect {
+
+    public MordenkainenExchangeEffect() {
+        super(Outcome.Benefit);
+        this.staticText = "Exchange your hand and library, then shuffle";
+    }
+
+    private MordenkainenExchangeEffect(final MordenkainenExchangeEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public MordenkainenExchangeEffect copy() {
+        return new MordenkainenExchangeEffect(this);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        Player controller = game.getPlayer(source.getControllerId());
+        if (controller == null) {
+            return false;
+        }
+        Cards hand = new CardsImpl(controller.getHand());
+        Cards library = new CardsImpl(controller.getLibrary().getCardList());
+        controller.putCardsOnTopOfLibrary(hand, game, source, false);
+        controller.moveCards(library, Zone.HAND, source, game);
+        controller.shuffleLibrary(source, game);
+        return true;
+    }
+}
diff --git a/Mage.Sets/src/mage/sets/AdventuresInTheForgottenRealms.java b/Mage.Sets/src/mage/sets/AdventuresInTheForgottenRealms.java
index ed5224ea3d6..66319f3bce6 100644
--- a/Mage.Sets/src/mage/sets/AdventuresInTheForgottenRealms.java
+++ b/Mage.Sets/src/mage/sets/AdventuresInTheForgottenRealms.java
@@ -156,6 +156,7 @@ public final class AdventuresInTheForgottenRealms extends ExpansionSet {
         cards.add(new SetCardInfo("Minsc, Beloved Ranger", 227, Rarity.MYTHIC, mage.cards.m.MinscBelovedRanger.class));
         cards.add(new SetCardInfo("Monk of the Open Hand", 25, Rarity.UNCOMMON, mage.cards.m.MonkOfTheOpenHand.class));
         cards.add(new SetCardInfo("Moon-Blessed Cleric", 26, Rarity.UNCOMMON, mage.cards.m.MoonBlessedCleric.class));
+        cards.add(new SetCardInfo("Mordenkainen", 64, Rarity.MYTHIC, mage.cards.m.Mordenkainen.class));
         cards.add(new SetCardInfo("Mordenkainen's Polymorph", 65, Rarity.COMMON, mage.cards.m.MordenkainensPolymorph.class));
         cards.add(new SetCardInfo("Mountain", 274, Rarity.LAND, mage.cards.basiclands.Mountain.class, NON_FULL_USE_VARIOUS));
         cards.add(new SetCardInfo("Nadaar, Selfless Paladin", 27, Rarity.RARE, mage.cards.n.NadaarSelflessPaladin.class));
diff --git a/Mage/src/main/java/mage/constants/SubType.java b/Mage/src/main/java/mage/constants/SubType.java
index 5b2cc8833e8..90d22d437af 100644
--- a/Mage/src/main/java/mage/constants/SubType.java
+++ b/Mage/src/main/java/mage/constants/SubType.java
@@ -432,6 +432,7 @@ public enum SubType {
     LILIANA("Liliana", SubTypeSet.PlaneswalkerType),
     LUKKA("Lukka", SubTypeSet.PlaneswalkerType),
     LOLTH("Lolth", SubTypeSet.PlaneswalkerType),
+    MORDENKAINEN("Mordenkainen", SubTypeSet.PlaneswalkerType),
     NAHIRI("Nahiri", SubTypeSet.PlaneswalkerType),
     NARSET("Narset", SubTypeSet.PlaneswalkerType),
     NIKO("Niko", SubTypeSet.PlaneswalkerType),
diff --git a/Mage/src/main/java/mage/game/command/emblems/MordenkainenEmblem.java b/Mage/src/main/java/mage/game/command/emblems/MordenkainenEmblem.java
new file mode 100644
index 00000000000..34bcf85d58f
--- /dev/null
+++ b/Mage/src/main/java/mage/game/command/emblems/MordenkainenEmblem.java
@@ -0,0 +1,22 @@
+package mage.game.command.emblems;
+
+import mage.abilities.common.SimpleStaticAbility;
+import mage.abilities.effects.common.continuous.MaximumHandSizeControllerEffect;
+import mage.constants.Duration;
+import mage.constants.Zone;
+import mage.game.command.Emblem;
+
+/**
+ *
+ * @author weirddan455
+ */
+public final class MordenkainenEmblem extends Emblem {
+
+    // You get an emblem with "You have no maximum hand size."
+    public MordenkainenEmblem() {
+        this.setName("Emblem Mordenkainen");
+        this.getAbilities().add(new SimpleStaticAbility(Zone.COMMAND, new MaximumHandSizeControllerEffect(
+                Integer.MAX_VALUE, Duration.WhileOnBattlefield, MaximumHandSizeControllerEffect.HandSizeModification.SET
+        )));
+    }
+}
diff --git a/Mage/src/main/java/mage/game/permanent/token/DogIllusionToken.java b/Mage/src/main/java/mage/game/permanent/token/DogIllusionToken.java
new file mode 100644
index 00000000000..8bbb5f561af
--- /dev/null
+++ b/Mage/src/main/java/mage/game/permanent/token/DogIllusionToken.java
@@ -0,0 +1,67 @@
+package mage.game.permanent.token;
+
+import mage.MageInt;
+import mage.abilities.Ability;
+import mage.abilities.common.SimpleStaticAbility;
+import mage.abilities.dynamicvalue.DynamicValue;
+import mage.abilities.effects.Effect;
+import mage.abilities.effects.common.continuous.SetPowerToughnessSourceEffect;
+import mage.constants.CardType;
+import mage.constants.Duration;
+import mage.constants.SubType;
+import mage.constants.Zone;
+import mage.game.Game;
+import mage.players.Player;
+
+/**
+ *
+ * @author weirddan455
+ */
+public final class DogIllusionToken extends TokenImpl {
+
+    public DogIllusionToken() {
+        super("Dog Illusion", "blue Dog Illusion creature token with \"This creature's power and toughness are each equal to twice the number of cards in your hand.\"");
+        cardType.add(CardType.CREATURE);
+        color.setBlue(true);
+        subtype.add(SubType.DOG);
+        subtype.add(SubType.ILLUSION);
+        power = new MageInt(0);
+        toughness = new MageInt(0);
+        addAbility(new SimpleStaticAbility(Zone.ALL, new SetPowerToughnessSourceEffect(
+                DogIllusionValue.instance, Duration.EndOfGame)
+                .setText("{this}'s power and toughness are each equal to twice the number of cards in your hand")
+        ));
+    }
+
+    private DogIllusionToken(final DogIllusionToken token) {
+        super(token);
+    }
+
+    @Override
+    public DogIllusionToken copy() {
+        return new DogIllusionToken(this);
+    }
+}
+
+enum DogIllusionValue implements DynamicValue {
+    instance;
+
+    @Override
+    public int calculate(Game game, Ability sourceAbility, Effect effect) {
+        Player controller = game.getPlayer(sourceAbility.getControllerId());
+        if (controller == null) {
+            return 0;
+        }
+        return controller.getHand().size() * 2;
+    }
+
+    @Override
+    public DogIllusionValue copy() {
+        return instance;
+    }
+
+    @Override
+    public String getMessage() {
+        return "twice the number of cards in your hand";
+    }
+}