Izmah, the Pact's Child

You may play this card from you graveyard by sacrifing a Demon or a Dragon in addition to its other costs.

{t}, Sacrifice a creature: You gain 2 life and each opponent lose 2 life, if you sacrificed a Demon or a Dragon, you gain X and each opponent lose X instead, where X is the creature power.

{3}{p/b}{p/r}: Trasform this card, activate only as a sorcery and only if you have 4 or more Demon and/or Dragon in your graveyard.