Azrael, Archangel of Death

Flying
{t} An untapped angel: Target creature or player loses 2 life and you gain 2 life.
Sacrifice an angel: Destroy target creature.
Sacrifice three angels: Return Azrael, Archangel of Death from your graveyard to the battlefield as if it were just summoned.
"Valac abandoned his post, but I will stay and guide the dead home."