Empyrial Reservation

{t}: Look at the top card of target player's library, then exile it face down. If you control another enchantment named Empyrial Preservation, you may instead search target player's library for a card and exile it face down. Then, that library's owner shuffles it.
{t}: The next time you would draw a card this turn, instead put a card exiled with Empyrial Reservation into its owner's hand.