The Legend of Kuruk // Avatar Kuruk + Spark Double + The Mind Stone

The Legend of Kuruk // Avatar Kuruk

Spark Double

The Mind Stone

How it works

1. Activate Spark Double using Avatar Kuruk's ability by paying 20 minus 1 for each creature and/or artifact you can tap while activating it, causing you to take an extra turn after this one.
2. At the beginning of your end step, The Mind Stone triggers, blinking Spark Double. Choose to have it enter the battlefield as a copy of Avatar Kuruk.
3. Repeat each turn.

This dizzying engine centers around The Legend of Kuruk // Avatar Kuruk, whose backside features an expensive Exhaust ability to seize infinite extra turns, a cost heavily mitigated by its waterbending mechanic that lets your artifacts and creatures chip in for the payment. To bypass the restriction that limits this ultimate ability to once per game, Spark Double enters as a non-legendary copy of Avatar Kuruk to reset the activation constraint. Finally, The Mind Stone secures the loop by blinking that copy at the beginning of each end step, allowing it to re-enter as a fresh Avatar Kuruk ready to exhaust its power all over again.