Kozilek's Return is a mythic Instant card from Oath of the Gatewatch (OGW), collector number 98. Current market price: $0.53 (foil $6.54), TCGplayer market prices via Scryfall.
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 this card from your graveyard. If you do, this card deals 5 damage to each creature.