Toph, the First Metalbender + Toph, Hardheaded Teacher + Simic Growth Chamber + Troubled Healer

Toph, the First Metalbender

Toph, Hardheaded Teacher

Simic Growth Chamber

Troubled Healer

How it works

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

This ingenious loop turns your zero-mana artifact into an infinite engine by leveraging the passive land-transforming magic of Toph, the First Metalbender, which permanently turns your nontoken artifacts into lands. With that foundation set, every time you recast your free artifact, Toph, Hardheaded Teacher triggers to earthbend Simic Growth Chamber into a creature, allowing you to feed it to Troubled Healer's sacrifice ability to prevent damage. When Simic Growth Chamber heads to the graveyard, its native earthbend clause returns it straight to the battlefield tapped, where its enter-the-battlefield trigger fires to bounce your zero-mana artifact right back to your hand for another round.