Whenever Predator Ooze attacks, put a +1/+1 counter on it.
Whenever a creature dealt damage by Predator Ooze this turn dies, put a +1/+1 counter on Predator Ooze.
1/22/2011 Each time a creature dies, check whether Predator Ooze had dealt any damage to it at any time during that turn. If so, Predator Ooze’s ability will trigger. It doesn’t matter who controlled the creature or whose graveyard it was put into.