Reaver of Souls

Double strike, Menace, Deathless(When this
creature dies, if it had no -1/-1 counters on it, return
it to the battlefield with a -1/-1 counter on it. It
becomes a Zombie in addition to its other types.)
"The Tribe of Undeath's most skilled warriors are
tuned to shred through entire ranks of men. If you see
a corpse wielding dual blades, run."
- Sergeant of the Tribe of Blood.