Mikaeus, the Unhallowed + Luminous Broodmoth + Thermopod

Mikaeus, the Unhallowed

Luminous Broodmoth

Thermopod

How it works

1. Activate Thermopod by sacrificing it, adding .
2. When Thermopod dies, its undying ability triggers if it didn't have a +1/+1 counter, and Luminous Broodmoth triggers if Thermopod didn't have flying.
3. Resolve the undying trigger, if applicable, returning Thermopod from your graveyard to the battlefield with a +1/+1 counter on it.
4. Resolve the Luminous Broodmoth trigger, if applicable, returning Thermopod from your graveyard to the battlefield with a flying counter on it if Thermopod is still in your graveyard.
5. Repeat.