Toph, the First Metalbender + Toph, Hardheaded Teacher + Zuran Orb + Dimir Aqueduct

Toph, the First Metalbender

Toph, Hardheaded Teacher

Zuran Orb

Dimir Aqueduct

How it works

1. Cast the artifact by paying 0.
2. Toph, Hardheaded Teacher triggers, earthbending Dimir Aqueduct.
3. Resolve the artifact spell.
4. Activate Zuran Orb by sacrificing Dimir Aqueduct.
5. When Dimir Aqueduct dies, Toph, Hardheaded Teach triggers, returning Dimir Aqueduct from your graveyard to the battlefield tapped.
6. When Dimir Aqueduct enters, it triggers, returning the artifact cast in step 1 from the battlefield to your hand, as it's a land due to Toph, the First Metalbender.
7. Resolve the Zuran Orb ability
8. Repeat.

This loop turns your mana-positive or zero-cost artifacts into an infinite mechanical engine by leaning on Toph, the First Metalbender, which brilliantly turns all your nontoken artifacts into lands. Once your artifact is classified as a land, dropping it triggers Toph, Hardheaded Teacher to animate your Dimir Aqueduct, allowing you to feed that land to Zuran Orb for life and trigger its revival thanks to the earthbend safety net. When Dimir Aqueduct enters the battlefield, its own bounce ability forces your artifact-land right back to your hand to replay, creating a perpetual motion machine of sacrifices, landfalls, and storm count.