Toph, the First Metalbender + Haru, Hidden Talent + Stalactite Dagger + Carrion Feeder

Toph, the First Metalbender

Haru, Hidden Talent

Stalactite Dagger

Carrion Feeder

How it works

1. Cast Stalactite Dagger by paying 2.
2. When Stalactite Dagger enters, it triggers, creating a 1/1 Shapeshifter creature token with changeling.
3. When the Shapeshifter enters, Haru triggers, earthbending Stalactite Dagger, as it's a land due to Toph.
4. Activate Carrion Feeder by sacrificing Stalactite Dagger.
5. When Stalactite Dagger dies, Haru triggers, returning Stalactite Dagger from your graveyard to the battlefield.
6. Repeat steps 2 and 3 once.
7. Resolve the Carrion Feeder ability.
8. Repeat from step 4.

This engine relies on Toph, the First Metalbender to ingeniously redefine your nontoken artifacts as lands, turning Stalactite Dagger into a legal target for its own earthbending ability. When you cast the Dagger, its entry creates a Shapeshifter token, which in turn triggers Haru, Hidden Talent to earthbend the Dagger into a creature-land that retains its artifact card type. You can then feed this animated Dagger directly to Carrion Feeder, capitalizing on its earthbend-granted return-from-graveyard-when-it-dies clause to loop the entire process seamlessly.