Gorma, the Gullet + Yahenni, Undying Partisan

Gorma, the Gullet

Yahenni, Undying Partisan

How it works

1. Activate Yahenni by sacrificing the persist creature.
2. When the persist creature dies, its persist ability and Gorma trigger.
3. Resolve the Gorma trigger, putting a +1/+1 counter on it.
4. Resolve the persist trigger, returning it from your graveyard to the battlefield without a -1/-1 counter on it due to Gorma.
5. Resolve the Yahenni ability.
6. Repeat