Grimesludge, Ravenous One

Hexproof
Waste Wave- On each opponent's upkeep, creatures they own get a -1/-1 counter on them.
Slop Rush- Whenever an ooze you control dies, target opponent sacrifices a creature. You create a 3/3 green ooze token.
{b}{r}{g}, Sacrifice an ooze: Draw a card and you gain 2 life.