Therlm, The Ever-Slayer

Reach first-strike trample deathtouch menace
Therlm resurges with a +1/+1 counter on it
for each time it has resurged this game
Persist, Resurgence 2 (you may cast this creature
from your graveyard if you pay an additional {2} and
2 life for each time it has resurged this game including
this time)
Partner