Summoning Station + Blasting Station + Encroaching Mycosynth

Summoning Station

Blasting Station

Encroaching Mycosynth

How it works

1. Activate Summoning Station by tapping it, creating a 2/2 Pincher creature token.
2. When the Pincher enters the battlefield, Blasting Station triggers, untapping itself.
3. Activate Blasting Station by tapping it and sacrificing the Pincher.
4. When the Pincher dies, Summoning Station triggers, untapping itself.
5. Resolve the Blasting Station ability, dealing 1 damage to any target.
6. Repeat.