Kythus, Terror of Graed

Flash
Deathtouch
When Kythus, Terror of Gread enters the battlefield, search your library for an horror creature card, put it onto the battlefield, and shuffle your library.
When Kythus, Terror of Gread deals combat damage to a player, return it to your hand.
You may cast Kythus, Terror of Gread from your graveyard as long as you are attacking with three
or more horrors.