Oue-douji, Oni Overlord

First Strike
Demon, Devil, and Imp spells you cast cost {2} less to cast.
Whenever one or more Demons, Devils, and/or
Imps you control deal combat damage to a
player, look at the top three cards of your library.
Put one of them into your hand, put one of them
into your graveyard, and exile one of them. You
may play the exiled card this turn.