Karrthus, Tyrant of Jund [Alara Reborn] Sorcery If Cosmic Horror is destroyed

If Cosmic Horror is destroyed this way

"Walk the world and you'll find your soul

Set: Ice Age Type: Artifact Rare Cost: {4} {2}

) Whenever you tap a Swamp for mana

Set: Urza's Saga Type: Enchantment Rarity: Rare Cost: {2}{G}{G} Sacrifice a creature: Draw cards equal to the sacrificed creature's power

Karrthus, Tyrant of Jund [Alara Reborn] Sorcery If Cosmic Horror is destroyedSet: Alara Reborn Type: Legendary Creature Dragon Mythic Cost: {4}{B}{R}{G} Flying, haste When Karrthus, Tyrant of Jund enters the battlefield, gain control of all Dragons, then untap all Dragons. Other Dragon creatures you control have haste.