Morvan's Harvester

As long as you control a Morvan planeswalker, Morvan's Harvester can't have -1/-1 counters on it.
Reap 1- {1}{b}{r}{g} ({1}{b}{r}{g}- Put this creature onto the battlefield from your graveyard with a -1/-1 counter on it. Activate only as a sorcery.)
"Joriel will scoff, Justin will observe, Zegana will ignore and Francis will turn away. But I accept. I've already seen weirder."
-Morvan