Blasting Station + Metallic Mimic

Blasting Station

Metallic Mimic

How it works

1. Activate Blasting Station by tapping it and sacrificing the persist creature.
2. When the persist creature dies, its persist ability triggers, returning it from your graveyard to the battlefield without a -1/-1 counter on it due to Metallic Mimic.
3. When the persist creature enters, Blasting Station triggers, untapping Blasting Station.
4. Resolve the Blasting Station ability from step 1.
5. Repeat.