Toph, the First Metalbender + Toph, Hardheaded Teacher + Thaumatog + Arid Archway

Toph, the First Metalbender

Toph, Hardheaded Teacher

Thaumatog

Arid Archway

How it works

1. Cast the artifact by paying 0.
2. Toph, Hardheaded Teacher triggers, earthbending Arid Archway.
3. Resolve the artifact spell.
4. Activate Thaumatog by sacrificing Arid Archway.
5. When Arid Archway dies, Toph, Hardheaded Teach triggers, returning Arid Archway from your graveyard to the battlefield tapped.
6. When Arid Archway 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 Thaumatog ability
8. Repeat.

This clever loop transforms a humble zero-mana artifact into an engine of endless triggers by turning your permanents into overlapping resources. With Toph, the First Metalbender actively making your nontoken artifacts into lands, casting your cheap artifact sets off Toph, Hardheaded Teacher to earthbend Arid Archway into a living creature. You can then sacrifice that land-artifact to Thaumatog, sending it to the graveyard where its demise triggers a loop. Because Arid Archway is a land, when it returns to the battlefield from the graveyard, its own entry trigger forces you to bounce that original artifact right back to your hand, ready to be recast and repeat the entire cycle for infinite landfall, death, and storm triggers.