diff --git a/Mage.Sets/src/mage/cards/t/TheFirstSliver.java b/Mage.Sets/src/mage/cards/t/TheFirstSliver.java
new file mode 100644
index 00000000000..38219cb07c6
--- /dev/null
+++ b/Mage.Sets/src/mage/cards/t/TheFirstSliver.java
@@ -0,0 +1,51 @@
+package mage.cards.t;
+
+import mage.MageInt;
+import mage.abilities.common.SimpleStaticAbility;
+import mage.abilities.effects.common.continuous.GainAbilityControlledSpellsEffect;
+import mage.abilities.keyword.CascadeAbility;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.CardType;
+import mage.constants.SubType;
+import mage.constants.SuperType;
+import mage.filter.FilterSpell;
+import mage.filter.predicate.mageobject.SubtypePredicate;
+
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public final class TheFirstSliver extends CardImpl {
+
+    private static final FilterSpell filter = new FilterSpell("Sliver spells you cast");
+
+    static {
+        filter.add(new SubtypePredicate(SubType.SLIVER));
+    }
+
+    public TheFirstSliver(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.CREATURE}, "{W}{U}{B}{R}{G}");
+
+        this.addSuperType(SuperType.LEGENDARY);
+        this.subtype.add(SubType.SLIVER);
+        this.power = new MageInt(7);
+        this.toughness = new MageInt(7);
+
+        // Cascade
+        this.addAbility(new CascadeAbility());
+
+        // Sliver spells you cast have cascade.
+        this.addAbility(new SimpleStaticAbility(new GainAbilityControlledSpellsEffect(new CascadeAbility(), filter)));
+    }
+
+    private TheFirstSliver(final TheFirstSliver card) {
+        super(card);
+    }
+
+    @Override
+    public TheFirstSliver copy() {
+        return new TheFirstSliver(this);
+    }
+}
diff --git a/Mage.Sets/src/mage/sets/ModernHorizons.java b/Mage.Sets/src/mage/sets/ModernHorizons.java
index 3330617664d..ec12446f948 100644
--- a/Mage.Sets/src/mage/sets/ModernHorizons.java
+++ b/Mage.Sets/src/mage/sets/ModernHorizons.java
@@ -70,6 +70,7 @@ public final class ModernHorizons extends ExpansionSet {
         cards.add(new SetCardInfo("Spore Frog", 180, Rarity.COMMON, mage.cards.s.SporeFrog.class));
         cards.add(new SetCardInfo("Stream of Thought", 71, Rarity.COMMON, mage.cards.s.StreamOfThought.class));
         cards.add(new SetCardInfo("Sunbaked Canyon", 247, Rarity.RARE, mage.cards.s.SunbakedCanyon.class));
+        cards.add(new SetCardInfo("The First Sliver", 200, Rarity.MYTHIC, mage.cards.t.TheFirstSliver.class));
         cards.add(new SetCardInfo("Undead Augur", 112, Rarity.UNCOMMON, mage.cards.u.UndeadAugur.class));
         cards.add(new SetCardInfo("Urza, Lord High Artificer", 75, Rarity.MYTHIC, mage.cards.u.UrzaLordHighArtificer.class));
         cards.add(new SetCardInfo("Venomous Changeling", 114, Rarity.COMMON, mage.cards.v.VenomousChangeling.class));