Gluttonous Arvali

If a creature dealt damage by Gluttonous Arvali
should die this turn, instead exile it.
{x}{b}{g/u}, {t}: Put a creature card with mana value
X that was exiled by Gluttonous Arvali onto the
battlefield under your control.
When Gluttonous Arvali dies, return all creatures exiled by it to their owner's graveyard.