Insatiable Ooze

Tap Insatiable Ooze: Insatiable Ooze fights
target creature.
If Insatiable Ooze kills another creature, put X
+1/+1 counters on it where X is the power of
the creature Insatiable Ooze killed.
Remove 4 +1/+1 counters: Insatiable Ooze
gains a keyword ability of your choice.