Khrall, Greedy Assassin

Deathtouch, manace

Steal — Whenever Khrall deals combat
damage to a player, look at the top two cards
of that player’s library, exile one of them face down, then put the rest into their graveyard.
You may cast that card for as long as it
remains exiled, and mana of any type can be
spent to cast that spell.