Flayer of the Wrathbound

Undying (When this creature dies, if it had no
+1/+1 counters on it, return it to the battlefield
under its owner's control with a +1/+1 counter
on it.)
Whenever Flayer of the Hatebound or another
creature enters the battlefield from your
graveyard, that creature deals damage equal
to its power to target creature or player.