diff --git a/Mage.Sets/src/mage/cards/s/SokkaSwordmaster.java b/Mage.Sets/src/mage/cards/s/SokkaSwordmaster.java
new file mode 100644
index 00000000000..ef87f0e83d3
--- /dev/null
+++ b/Mage.Sets/src/mage/cards/s/SokkaSwordmaster.java
@@ -0,0 +1,97 @@
+package mage.cards.s;
+
+import mage.MageInt;
+import mage.abilities.Ability;
+import mage.abilities.SpellAbility;
+import mage.abilities.common.SimpleStaticAbility;
+import mage.abilities.effects.common.AttachEffect;
+import mage.abilities.effects.common.cost.CostModificationEffectImpl;
+import mage.abilities.keyword.VigilanceAbility;
+import mage.abilities.triggers.BeginningOfCombatTriggeredAbility;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.*;
+import mage.filter.StaticFilters;
+import mage.game.Game;
+import mage.target.TargetPermanent;
+import mage.util.CardUtil;
+
+import java.util.Optional;
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public final class SokkaSwordmaster extends CardImpl {
+
+    public SokkaSwordmaster(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.CREATURE}, "{2}{W}");
+
+        this.supertype.add(SuperType.LEGENDARY);
+        this.subtype.add(SubType.HUMAN);
+        this.subtype.add(SubType.WARRIOR);
+        this.subtype.add(SubType.ALLY);
+        this.power = new MageInt(3);
+        this.toughness = new MageInt(3);
+
+        // Vigilance
+        this.addAbility(VigilanceAbility.getInstance());
+
+        // Equipment spells you cast cost {1} less to cast for each Ally you control.
+        this.addAbility(new SimpleStaticAbility(new SokkaSwordmasterEffect()).addHint(AffinityType.ALLIES.getHint()));
+
+        // At the beginning of combat on your turn, attach up to one target Equipment you control to Sokka.
+        Ability ability = new BeginningOfCombatTriggeredAbility(
+                new AttachEffect(Outcome.BoostCreature, "attach up to one target Equipment you control to {this}"
+                ));
+        ability.addTarget(new TargetPermanent(
+                0, 1, StaticFilters.FILTER_CONTROLLED_PERMANENT_EQUIPMENT
+        ));
+        this.addAbility(ability);
+    }
+
+    private SokkaSwordmaster(final SokkaSwordmaster card) {
+        super(card);
+    }
+
+    @Override
+    public SokkaSwordmaster copy() {
+        return new SokkaSwordmaster(this);
+    }
+}
+
+class SokkaSwordmasterEffect extends CostModificationEffectImpl {
+
+    SokkaSwordmasterEffect() {
+        super(Duration.WhileOnBattlefield, Outcome.Benefit, CostModificationType.REDUCE_COST);
+        staticText = "Equipment spells you cast cost {1} less to cast for each Ally you control";
+    }
+
+    private SokkaSwordmasterEffect(final SokkaSwordmasterEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source, Ability abilityToModify) {
+        CardUtil.reduceCost(abilityToModify, game.getBattlefield().count(AffinityType.ALLIES.getFilter(), source.getControllerId(), source, game));
+        return true;
+    }
+
+    @Override
+    public boolean applies(Ability abilityToModify, Ability source, Game game) {
+        return Optional
+                .ofNullable(abilityToModify)
+                .filter(SpellAbility.class::isInstance)
+                .filter(spellAbility -> spellAbility.isControlledBy(source.getControllerId()))
+                .map(SpellAbility.class::cast)
+                .map(spellAbility -> spellAbility.getCharacteristics(game))
+                .filter(card -> card.hasSubtype(SubType.EQUIPMENT, game))
+                .isPresent();
+    }
+
+    @Override
+    public SokkaSwordmasterEffect copy() {
+        return new SokkaSwordmasterEffect(this);
+    }
+
+}
diff --git a/Mage.Sets/src/mage/sets/AvatarTheLastAirbenderEternal.java b/Mage.Sets/src/mage/sets/AvatarTheLastAirbenderEternal.java
index f44f7fefa36..7e30d559048 100644
--- a/Mage.Sets/src/mage/sets/AvatarTheLastAirbenderEternal.java
+++ b/Mage.Sets/src/mage/sets/AvatarTheLastAirbenderEternal.java
@@ -247,6 +247,8 @@ public final class AvatarTheLastAirbenderEternal extends ExpansionSet {
         cards.add(new SetCardInfo("Sokka and Suki", 71, Rarity.RARE, mage.cards.s.SokkaAndSuki.class));
         cards.add(new SetCardInfo("Sokka's Charge", 66, Rarity.RARE, mage.cards.s.SokkasCharge.class));
         cards.add(new SetCardInfo("Sokka's Sword Training", 84, Rarity.COMMON, mage.cards.s.SokkasSwordTraining.class));
+        cards.add(new SetCardInfo("Sokka, Swordmaster", 174, Rarity.MYTHIC, mage.cards.s.SokkaSwordmaster.class, NON_FULL_USE_VARIOUS));
+        cards.add(new SetCardInfo("Sokka, Swordmaster", 83, Rarity.MYTHIC, mage.cards.s.SokkaSwordmaster.class, NON_FULL_USE_VARIOUS));
         cards.add(new SetCardInfo("Sokka, Wolf Cove's Protector", 219, Rarity.UNCOMMON, mage.cards.s.SokkaWolfCovesProtector.class, NON_FULL_USE_VARIOUS));
         cards.add(new SetCardInfo("Sokka, Wolf Cove's Protector", 274, Rarity.UNCOMMON, mage.cards.s.SokkaWolfCovesProtector.class, NON_FULL_USE_VARIOUS));
         cards.add(new SetCardInfo("Sol Ring", 316, Rarity.RARE, mage.cards.s.SolRing.class));