Toph, the First Metalbender + Toph, Hardheaded Teacher + Selesnya Sanctuary + Trenching Steed

Toph, the First Metalbender

Toph, Hardheaded Teacher

Selesnya Sanctuary

Trenching Steed

How it works

1. Cast the artifact by paying 0.
2. Toph, Hardheaded Teacher triggers, earthbending Selesnya Sanctuary.
3. Resolve the artifact spell.
4. Activate Trenching Steed by sacrificing Selesnya Sanctuary.
5. When Selesnya Sanctuary dies, Toph, Hardheaded Teach triggers, returning Selesnya Sanctuary from your graveyard to the battlefield tapped.
6. When Selesnya Sanctuary 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 ingenious loop transforms ordinary artifact casting into a self-sustaining engine by turning your free artifacts into lands through Toph, the First Metalbender's static ability. While Toph, Hardheaded Teacher provides the earthbending trigger needed to animate your bounce-land, Selesnya Sanctuary plays a double agent by returning that very artifact to your hand every time it re-enters the battlefield. Meanwhile, Trenching Steed acts as the sacrificial outlet that sends Selesnya Sanctuary to the graveyard, triggering its safe return directly to the battlefield to restart the cycle indefinitely.