Choose Your Demise (Archenemy: Nicol Bolas) [Archenemy: Nicol Bolas Schemes]

When you set this scheme in motion, look at the top four cards of your library and separate them into a face-down pile and a face-up pile. An opponent chooses one of those piles. Put the cards in that pile into your hand and the rest on the bottom of your library in any order.