Toph, the First Metalbender + Toph, Hardheaded Teacher + Orzhov Basilica + Trenching Steed

Toph, the First Metalbender

Toph, Hardheaded Teacher

Orzhov Basilica

Trenching Steed

How it works

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

This clever loop turns the battlefield into a recursive engine by leveraging Toph, the First Metalbender, whose static ability turns your nontoken artifacts into lands. With that foundation set, casting a zero-mana artifact triggers Toph, Hardheaded Teacher to earthbend your Orzhov Basilica into a creature-land so it can be sacrificed to Trenching Steed. When Orzhov Basilica hits the graveyard, its built-in safety net and Toph's land-transformation allow it to bounce the original artifact right back to your hand as it re-enters the battlefield tapped, priming you to recast it and repeat the entire sequence indefinitely for infinite deaths, sacrifices, and landfall triggers.