Sanity Drain

Empty {4}{u} (You may cast this card for its empty cost. If you do, exile it as it resolves. During your precombat main phase, if an opponent cast no spells last turn, you may cast the exiled card without paying its mana cost. Empty only as a sorcery.)
Target player reveals the top 13 cards of his or her library. They lose life equal to the total converted mana cost of all cards, then play each card without paying its mana cost. At the beginning of your end step, you lose the game.