Blasting Station + Restless Apparition + Thran Vigil

Blasting Station

Restless Apparition

Thran Vigil

How it works

1. Activate Blasting Station by tapping it and sacrificing Restless Apparition.
2. When Restless Apparition dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
3. Thran Vigil and Blasting Station trigger.
4. Resolve the Thran Vigil trigger, putting a +1/+1 counter on Restless Apparition.
5. Resolve the Blasting Station trigger, untapping it.
6. Resolve the Blasting Station ability from step 1.
7. Repeat.