Toph, the First Metalbender + Haru, Hidden Talent + Firdoch Core + Need for Speed

Toph, the First Metalbender

Haru, Hidden Talent

Firdoch Core

Need for Speed

How it works

1. Cast Firdoch Core by paying 3.
2. When Firdoch Core enters, Haru triggers, earthbending Firdoch Core, as it's a land due to Toph.
3. Activate Need for Speed by sacrificing Firdoch Core.
4. When Firdoch Core dies, Haru triggers, returning Firdoch Core from your graveyard to the battlefield.
5. When Firdoch Core enters, Haru triggers, earthbending Firdoch Core, as it's a land due to Toph.
6. Resolve the Need for Speed ability.
7. Repeat from step 3.