Kozilek, the Great Distortion is a mythic Legendary Creature — Eldrazi card from Secret Lair Drop (SLD), collector number 493. Current market price: $12.59 (foil $14.94), 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.