Thopter Foundry + Salvaging Station + Blasting Station + Mox Opal

Thopter Foundry

Salvaging Station

Blasting Station

Mox Opal

How it works

1. Activate Mox Opal by tapping it, adding 1.
2. Activate Thopter Foundry by paying 1 and sacrificing Mox Opal, creating a 1/1 Thopter artifact creature token and causing you to gain 1 life.
3. When the Thopter enters the battlefield, Blasting Station triggers, untapping Blasting Station.
4. Activate Blasting Station by tapping it and sacrificing the Thopter.
5. When the Thopter dies, Salvaging Station triggers, untapping Salvaging Station.
6. Resolve the Blasting Station ability, dealing 1 damage to any target.
7. Activate Salvaging Station by tapping it, returning Mox Opal from your graveyard to the battlefield.
8. Repeat.

This clever loop transforms a humble pile of artifact station infrastructure into an engine for infinite damage and life. It all starts with Mox Opal, whose metalcraft-fueled mana pays to activate Thopter Foundry, which sacrifices the Opal itself to pump out a flying 1/1 Thopter and a blip of life. That entering Thopter triggers Blasting Station to untap, ready to immediately fling the tiny token at an opponent's face. When the Thopter bites the dust, Salvaging Station's trigger untaps the Salvaging Station in turn, allowing it to fish the sacrificed Mox Opal right back out of the graveyard and onto the battlefield so the whole cycle can begin anew.