Toph, the First Metalbender + Toph, Hardheaded Teacher + Gruul Turf + Phantom Train

Toph, the First Metalbender

Toph, Hardheaded Teacher

Gruul Turf

Phantom Train

How it works

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

This fascinating loop turns your mana base into a self-sustaining engine by transforming noncreature artifacts into lands through Toph, the First Metalbender, allowing Gruul Turf to treat them as bounce targets when it enters the battlefield. As you repeatedly cast and bounce your free artifact, Toph, Hardheaded Teacher triggers on every single cast to keep your lands animating and entering the fray. Meanwhile, Phantom Train acts as the sacrifice outlet that lets you feed Gruul Turf into the graveyard, triggering Toph's recursion ability to bring the land right back into play.