Kethek, Crucible Goliath (Showcase) (Step-and-Compleat Foil) (ONE-465) - Phyrexia: All Will Be One: (Showcase) (Borderless) Foil

At the beginning of your end step, you may sacrifice another creature. If you do, reveal cards from the top of your library until you reveal a nonlegendary creature card with lesser mana value, put it onto the battlefield, then put the rest on the bottom of your library in a random order.