Mikaeus, the Unhallowed + Luminous Broodmoth + Goblin Bombardment

Mikaeus, the Unhallowed

Luminous Broodmoth

Goblin Bombardment

How it works

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