Toph, the First Metalbender + Toph, Hardheaded Teacher + Thaumatog + Golgari Rot Farm

Toph, the First Metalbender

Toph, Hardheaded Teacher

Thaumatog

Golgari Rot Farm

How it works

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

This elegant loop transforms your non-token artifacts into lands thanks to Toph, the First Metalbender, allowing Golgari Rot Farm to treat them as its bouncing fodder when it enters the battlefield. Every time you recast your zero-mana artifact, Toph, Hardheaded Teacher triggers its earthbend ability, while Thaumatog stands ready to sacrifice the Rot Farm whenever needed. The beauty of this engine lies in how Golgari Rot Farm's entry trigger conveniently picks right back up the artifact you just bounced, sustaining an infinite sequence of spell casts, landfalls, and sacrifices.