Kotis, the Fangkeeper (Borderless) [Tarkir: Dragonstorm]

Description

Set:	Tarkir: Dragonstorm
Type:	Legendary Creature — Zombie Warrior
Rarity:	Rare
Cost:	{1}{B}{G}{U}

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.