Lythaen, Cosmic Anomaly

You may play any face down card you own in exile by paying its mana cost.
Whenever you play a card from exile, deal 2 damage to each opponent.
{1}{c}: Exile Lythaen, Cosmic Anomaly and return her to the battlefield at the end of the turn.
{1}{u/r}{u/r}: Exile the top two cards of your library face down.