Mikaeus, the Unhallowed + Goblin Bombardment + Dread Tiller

단계

1. Activate Goblin Bombardment by sacrificing Dread Tiller.
2. When Dread Tiller dies, its undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
3. When Dread Tiller enters the battlefield, it triggers, putting a -1/-1 counter on it.
4. Resolve the Goblin Bombardment ability
5. Repeat.