Here’s how this works: Step 1: You reveal the top five cards of your library. Step 2: You separate those cards into two piles. (A pile can have zero cards.) Step 3: An opponent of your choice chooses one of those piles. Step 4: You choose one of the cards in the chosen pile. Step 5: You put the chosen card in your hand. Step 6: You put all other revealed cards (from both piles) on the bottom of your library in any order.