Kozilek, the Great Distortion is a mythic Legendary Creature — Eldrazi card from Oath of the Gatewatch Promos (POGW), collector number 4s. Current market price: — (foil $20.51), TCGplayer market prices via Scryfall.
When you cast this spell, if you have fewer than seven cards in hand, draw cards equal to the difference. Menace Discard a card with mana value X: Counter target spell with mana value X.