Workshop Assistant + Junk Diver + Blasting Station + Mycosynth Golem

Workshop Assistant

Junk Diver

Blasting Station

Mycosynth Golem

How it works

1. Activate Blasting Station by tapping it and sacrificing Junk Diver.
2. When Junk Diver dies, it triggers, returning Workshop Assistant from your graveyard to your hand.
3. Resolve the Blasting Station ability, dealing 1 damage to any target.
4. Cast Workshop Assistant by paying 0.
5. When Workshop Assistant enters the battlefield, Blasting Station triggers, untapping Blasting Station.
6. Activate Blasting Station by tapping it and sacrificing Workshop Assistant.
7. When Workshop Assistant dies, it triggers, returning Junk Diver from your graveyard to your hand.
8. Resolve the Blasting Station ability, dealing 1 damage to any target.
9. Cast Junk Diver by paying 0.
10. When Junk Diver enters the battlefield, Blasting Station triggers, untapping Blasting Station.
11. Repeat.