Garou, the Human Monster

Undying ( When this creature dies, if it had no
+1/+1 counters on it, return it to the battlefield
under it's owner's control with a +1/+1 counter
on it.)
When Garou, the Human Monster attacks, it must
be blocked by each human creature your opponent controls or each non-human creature your opponent controls.
Garou gains +1/+1 for each creature blocking it
this round.