Grimgrin, Corpse-Born + Uncivil Unrest

Grimgrin, Corpse-Born

Uncivil Unrest

How it works

1. Activate Grimgrin by sacrificing the persist creature.
2. When the persist creature dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it and at least one +1/+1 counter on it due to Uncivil Unrest.
3. Remove a -1/-1 counter and a +1/+1 counter from that creature as a state-based action.
4. Resolve the Grimgrin ability.
5. Repeat