Maddened with Desire

As an additional cost to cast Maddened With Desire, sacrifice a creature.
Target instant or sorcery card in your graveyard gains flashback until end of turn. The flashback cost is equal to its mana cost.
(You may cast that card from your graveyard for its flashback cost. Then exile it.)

You may cast Maddened With Desire from your graveyard. If you do, exile it as it resolves.