Infernal Vessel + Luminous Broodmoth + Grimgrin, Corpse-Born

Infernal Vessel

Luminous Broodmoth

Grimgrin, Corpse-Born

How it works

1. Activate Grimgrin by sacrificing Infernal Vessel.
2. When Infernal Vessel dies, it triggers, returning itself from your graveyard to the battlefield as a Demon in addition to its other types.
3. Resolve the Grimgrin ability.
4. Activate Grimgrin by sacrificing Infernal Vessel.
5. When Infernal Vessel dies, Luminous Broodmoth triggers, returning Infernal Vessel from your graveyard to the battlefield with a flying counter on it.
6. Resolve the Grimgrin ability.
7. Repeat.