Kotis, the Fangkeeper
From Tarkir: Dragonstorm set
Kotis, the Fangkeeper
Legendary Creature — Zombie Warrior
2/1
Indestructible
Whenever Kotis deals combat damage to a player, exile the top X cards of their library, where X is the amount of damage dealt. You may cast any number of spells with mana value X or less from among them without paying their mana costs.