Nito, First of the Dead

Menace

Wither(This deals damage to creatures in
the form of -1/-1 counters.)

Undying(When this creature dies, if it had no +1/+1
counters on it, return it to the battlefield under it's
owners control with a +1/+1 counter on it.)

"Nito Unleashed a miasma of death and disease."
-First Firekeeper