Ulkalshiat, Moan of the Dead

When Ulkashiat, Moan of the Dead enters the
battlefield, exile target card from your graveyard:
Return target creature card from a graveyard to
the battlefield under your control with a corpse
counter on it.
{u}{u}{u/b}{b}{b}: Sacrifice a creature: return target creature from your graveyard to the battlefield.
Whenever a permanent enters the battlefield
or dies, draw a card and discard a card.