Sorcery, 2B (3) Target player exiles all cards from his or her hand face down. At the beginning of the end step of that player's next turn, that player returns those cards to his or her hand.1
Illus. Terese Nielsen and Thomas M. Baxa
10/4/2004: If played on the current player, it happens at the end of the current turn. The text is meant to mean "that player's next end-of-turn step".