Nathar’s Incantation

Search your library for a Evil spell play it, ignoring any costs

If this spell is in your graveyard you may cast it with out paying the mana cost, if you do this you must destroy a creature that you control, and exile Nathar’s Incantation

If this spell is in your exile you may cast it with out paying the mana cost, if you do you lose half your life and can no longer play Nathar’s Incantation for the rest of the game.