diff --git a/Mage.Sets/src/mage/cards/s/SkyTether.java b/Mage.Sets/src/mage/cards/s/SkyTether.java
new file mode 100644
index 0000000000..d2f8b85087
--- /dev/null
+++ b/Mage.Sets/src/mage/cards/s/SkyTether.java
@@ -0,0 +1,54 @@
+package mage.cards.s;
+
+import mage.abilities.Ability;
+import mage.abilities.common.SimpleStaticAbility;
+import mage.abilities.effects.common.AttachEffect;
+import mage.abilities.effects.common.continuous.GainAbilityAttachedEffect;
+import mage.abilities.effects.common.continuous.LoseAbilityAttachedEffect;
+import mage.abilities.keyword.DefenderAbility;
+import mage.abilities.keyword.EnchantAbility;
+import mage.abilities.keyword.FlyingAbility;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.*;
+import mage.target.TargetPermanent;
+import mage.target.common.TargetCreaturePermanent;
+
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public final class SkyTether extends CardImpl {
+
+    public SkyTether(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.ENCHANTMENT}, "{W}");
+
+        this.subtype.add(SubType.AURA);
+
+        // Enchant creature
+        TargetPermanent auraTarget = new TargetCreaturePermanent();
+        this.getSpellAbility().addTarget(auraTarget);
+        this.getSpellAbility().addEffect(new AttachEffect(Outcome.BoostCreature));
+        Ability ability = new EnchantAbility(auraTarget.getTargetName());
+        this.addAbility(ability);
+
+        // Enchanted creature has defender and loses flying.
+        ability = new SimpleStaticAbility(new GainAbilityAttachedEffect(
+                DefenderAbility.getInstance(), AttachmentType.AURA, Duration.WhileOnBattlefield
+        ));
+        ability.addEffect(new LoseAbilityAttachedEffect(
+                FlyingAbility.getInstance(), AttachmentType.AURA
+        ).setText("and loses flying"));
+        this.addAbility(ability);
+    }
+
+    private SkyTether(final SkyTether card) {
+        super(card);
+    }
+
+    @Override
+    public SkyTether copy() {
+        return new SkyTether(this);
+    }
+}
diff --git a/Mage.Sets/src/mage/sets/RavnicaAllegiance.java b/Mage.Sets/src/mage/sets/RavnicaAllegiance.java
index 95e8e91abc..85e2a023e7 100644
--- a/Mage.Sets/src/mage/sets/RavnicaAllegiance.java
+++ b/Mage.Sets/src/mage/sets/RavnicaAllegiance.java
@@ -176,6 +176,7 @@ public final class RavnicaAllegiance extends ExpansionSet {
         cards.add(new SetCardInfo("Skarrgan Hellkite", 114, Rarity.MYTHIC, mage.cards.s.SkarrganHellkite.class));
         cards.add(new SetCardInfo("Skatewing Spy", 52, Rarity.UNCOMMON, mage.cards.s.SkatewingSpy.class));
         cards.add(new SetCardInfo("Skewer the Critics", 115, Rarity.COMMON, mage.cards.s.SkewerTheCritics.class));
+        cards.add(new SetCardInfo("Sky Tether", 21, Rarity.UNCOMMON, mage.cards.s.SkyTether.class));
         cards.add(new SetCardInfo("Smelt-Ward Ignus", 116, Rarity.UNCOMMON, mage.cards.s.SmeltWardIgnus.class));
         cards.add(new SetCardInfo("Smothering Tithe", 22, Rarity.RARE, mage.cards.s.SmotheringTithe.class));
         cards.add(new SetCardInfo("Spawn of Mayhem", 85, Rarity.MYTHIC, mage.cards.s.SpawnOfMayhem.class));