The Legend of Kuruk // Avatar Kuruk + Sakashima the Impostor + Soulherder

The Legend of Kuruk // Avatar Kuruk

Sakashima the Impostor

Soulherder

How it works

1. Activate Sakashima the Impostor 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, Soulherder triggers, blinking Sakashima the Impostor. Choose to have it enter the battlefield as a copy of Avatar Kuruk.
3. Repeat each turn.

By leveraging Soulherder's end-step blink on Sakashima the Impostor, you can repeatedly reset Sakashima so it enters the battlefield as a fresh copy of The Legend of Kuruk // Avatar Kuruk. This bypasses Avatar Kuruk's once-per-game Exhaust restriction entirely, allowing you to tap your permanents to pay the massive Waterbend cost for infinite extra turns.