Aang, Airbending Master + Aang, the Last Airbender + Semblance Anvil

Aang, Airbending Master

Aang, the Last Airbender

Semblance Anvil

How it works

1. Cast Aang, Airbending Master either from your hand or from the command zone by paying 2 plus commander tax if applicable.
2. When Aang, Airbending Master enters, it triggers, airbending Aang, the Last Airbender
3. Cast Aang, the Last Airbender from exile by paying 0.
4. When Aang, the Last Airbender enters, it triggers, airbending Aang, Airbending Master.
5. Cast Aang, Airbending Master from exile by paying 0.
6. Repeat from step 2.

This clever loop relies on Semblance Anvil having previously imprinted a card type shared by our legendary heroes, reducing their casting costs by {2}. Because Aang, Airbending Master's entrance triggers an exile-and-recast effect on Aang, the Last Airbender, and vice versa, each avatar effortlessly shuttles the other away and back to the battlefield. Thanks to the Anvil's discount neutralizing the {2} re-entry cost, this back-and-forth cycle becomes entirely free. The result is an endless cascade of triggers, generating infinite enter-the-battlefield and leave-the-battlefield events alongside an arbitrarily high storm count.