Mikaeus, the Unhallowed + Goblin Bombardment + Brambleback Brute

Mikaeus, the Unhallowed

Goblin Bombardment

Brambleback Brute

How it works

1. Activate Goblin Bombardment by sacrificing Brambleback Brute.
2. When Brambleback Brute dies, its undying ability triggers, returning it from your graveyard to the battlefield without a +1/+1 counter on it due to its replacement effect.
3. Resolve the Goblin Bombardment ability
4. Repeat.