Toph, the First Metalbender + Haru, Hidden Talent + Stonework Puma + Thermopod

Toph, the First Metalbender

Haru, Hidden Talent

Stonework Puma

Thermopod

How it works

1. Cast Stonework Puma by paying 3.
2. When Stonework Puma enters, Haru triggers, targeting Stonework Puma as it is a land due to Toph.
3. Activate Thermopod by sacrificing Stonework Puma.
4. When Stonework Puma dies, Haru triggers, returning Stonework Puma from your graveyard to the battlefield tapped.
5. When Stonework Puma enters, Haru triggers, targeting Stonework Puma as it is a land due to Toph.
6. Repeat from step 3.

This fascinating loop turns Stonework Puma into a self-sustaining mana engine by leveraging Toph, the First Metalbender's static ability, which cleverly transforms your nontoken artifacts into lands. Because Stonework Puma is an Ally, its arrival triggers Haru, Hidden Talent to earthbend it into a land-creature, allowing Thermopod to sacrifice it for red mana. When Stonework Puma dies, the lingering delayed trigger from earthbending instantly returns it to the battlefield tapped, ready to retrigger Haru, Hidden Talent all over again and fuel the sacrifice loop indefinitely.