Mullwake Engorger

When Mullwake Engorger enters
the battlefield, destroy target creature
an opponent controls.
When a creature is destroyed by this effect,
exile it instead of putting it into a graveyard,
and add +1/+1 counters to Mullwake
Engorger equal to the destroyed
creature's converted mana cost.
Rouse {5}{b}{g} - (You may play this card from your graveyard.)