Toph, the First Metalbender + Toph, Hardheaded Teacher + Simic Growth Chamber + Coastal Hornclaw

Toph, the First Metalbender

Toph, Hardheaded Teacher

Simic Growth Chamber

Coastal Hornclaw

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 Coastal Hornclaw 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 Coastal Hornclaw ability
8. Repeat.

This brilliant loop transforms a simple zero-mana artifact into a self-sustaining engine by turning all your nontoken artifacts into lands thanks to Toph, the First Metalbender. With that crucial type-shifting foundation in place, Toph, Hardheaded Teacher acts as both your catalyst and safety net, earthbending your bounce-lands while keeping your resources flowing. You repeatedly cast your zero-mana artifact, sacrifice it to Coastal Hornclaw as a land to fuel its flying, and let its death trigger its eventual return to the battlefield. Finally, Simic Growth Chamber rounds out the loop by entering the battlefield to bounce that very same artifact right back to your hand, creating an endless cycle of sacrifice, land drops, and artifact triggers.