Kozilek's Return [Oath of the Gatewatch Prerelease Promos] Magic 2010 Set: Scars of Mirrodin Type:

Set: Scars of Mirrodin Type: Artifact Creature — Phyrexian Wurm Rarity: Mythic Cost: {6} Deathtouch

or blue creature

Set: Legends Type: World Enchantment Rarity: Rare Cost: {2}{R}{R} No more than two creatures can attack each combat

Set: Kaladesh Inventions Type: Legendary Artifact Rarity: Mythic Cost: {6} {8}

Set: Kaladesh Inventions Type: Artifact Creature — Construct Rarity: Mythic Cost: {3}{G}{G} Trample

Kozilek's Return [Oath of the Gatewatch Prerelease Promos] Magic 2010 Set: Scars of Mirrodin Type:Set: Oath of the Gatewatch Prerelease Promos Type: Instant Rarity: Mythic Cost: {2}{R} Devoid (This card has no color.) Kozilek's Return deals 2 damage to each creature. Whenever you cast an Eldrazi creature spell with mana value 7 or greater, you may exile Kozilek's Return from your graveyard. If you do, Kozilek's Return deals 5 damage to each creature.