Toph, the First Metalbender + Toph, Hardheaded Teacher + Lithatog + Gruul Turf

Toph, the First Metalbender

Toph, Hardheaded Teacher

Lithatog

Gruul Turf

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 Lithatog 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 Lithatog ability
8. Repeat.

This clever loop centers around Toph, the First Metalbender turning your zero-mana artifacts into lands, allowing Gruul Turf to bounce them right back to your hand when it enters the battlefield. As you repeatedly cast your artifact, Toph, Hardheaded Teacher triggers to earthbend your Gruul Turf into a creature, making it a legal sacrifice for Lithatog. When Lithatog sends the animated Gruul Turf to the graveyard, Toph, Hardheaded Teacher's safety-net trigger brings it straight back to the battlefield tapped to restart the cycle.