Toph, the First Metalbender + Toph, Hardheaded Teacher + Rakdos Carnarium + Trenching Steed

Toph, the First Metalbender

Toph, Hardheaded Teacher

Rakdos Carnarium

Trenching Steed

How it works

1. Cast the artifact by paying 0.
2. Toph, Hardheaded Teacher triggers, earthbending Rakdos Carnarium.
3. Resolve the artifact spell.
4. Activate Trenching Steed by sacrificing Rakdos Carnarium.
5. When Rakdos Carnarium dies, Toph, Hardheaded Teach triggers, returning Rakdos Carnarium from your graveyard to the battlefield tapped.
6. When Rakdos Carnarium 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 transforms a humble zero-cost artifact into a land thanks to Toph, the First Metalbender, allowing you to feed it directly to Trenching Steed. Because that sacrificed land is actually Rakdos Carnarium, its death triggers Toph, Hardheaded Teacher to instantly recursion it right back to the battlefield. As Rakdos Carnarium enters, its own trigger bounces your zero-cost artifact back to your hand, fueled smoothly by Toph, Hardheaded Teacher's spell-casting trigger earthbending the bounceland into a creature ready to be sacrificed all over again.