Mokou, Eternal Flame

Haste
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.)
If damage would be dealt to Mokou,
Eternal Flame prevent that damage and put a
-1/-1 counter on Mokou, Eternal Flame

Immortality is overrated.