Tzakul Kaal, Night's Eyes

Flying
When Tzakul Kal, Night's Eyes enters the battlefield, reveal the top cards of your library until you reveal a nonland card. Each opponent exiles the top X cards of his or her library, then discards X cards at random where X is the revealed card's converted mana cost. Put all cards you revealed this way into your graveyard, then shuffle your graveyard into your library.