Grimgrin, Corpse-Born + Combine Guildmage

Grimgrin, Corpse-Born

Combine Guildmage

How it works

1. Activate Combine Guildmage's first ability by paying 1 and tapping it, causing your creatures that enter this turn to enter with a +1/+1 counter on them.
2. Activate Grimgrin by sacrificing the persist creature.
3. 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 Combine Guildmage.
4. Remove a -1/-1 counter and a +1/+1 counter from that creature as a state-based action.
5. Resolve the Grimgrin ability.
6. Repeat from step 2.