Baltherius the Sludge

Trample.
{2}{b}{b}, {t}: Destroy target creature and put a
gorging counter on Baltherius.
Remove a gorging counter from Baltherius:
Create a 3/3 green ink ooze creature token.
Whenever Baltherius destroys a creature or deals damage to a player put a gorging counter on Blatherius.
Baltherius gets +1/+1 for each gorging counter
on Blatherius.