Skaab Behemoth

Skaab Behemoth enters the battlefield with X
+1/+1 counters on it.
Whenever Skaab Behemoth is dealt damage,
instead remove a +1/+1 counter from it. Then
create a 2/2 black Zombie creature token.
Whenever another nontoken creature dies, put a
+1/+1 counter on Skaab Behemoth.