Avenging Ooze

Manaweb
Avenging Ooze must attack each turn if able.
Sacrifice an ooze creature, choose one:
-Regenerate Avenging Ooze.
-Put a +1/+1 counter on Avenging Ooze.

That thing attacked us like it hated us. I was lucky to have survived, no one else did.