Mikaeus, the Unhallowed + Blasting Station + Plague Belcher

Mikaeus, the Unhallowed

Blasting Station

Plague Belcher

How it works

1. Activate Blasting Station by tapping it and sacrificing Plague Belcher.
2. When Plague Belcher 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. When Plague Belcher enters, Blasting Station triggers, untapping Blasting Station.
4. Resolve the Blasting Station ability from step 1
5. Repeat.