Wormfang Manta + Doorkeeper Thrull + Airbender Ascension

Wormfang Manta

Doorkeeper Thrull

Airbender Ascension

How it works

1. Blink Wormfang Manta using Airbender Ascension. Wormfang Manta's first ability won't trigger due to Doorkeeper Thrull.
2. Wormfang Manta's second ability triggers, causing you to take an extra turn after this one.
3. Repeat each turn.

This clever loop exploits the delayed trigger on Wormfang Manta by refusing to let it negatively impact you in the first place. With Doorkeeper Thrull silently suppressing the Manta's enters-the-battlefield penalty, you only get the upside when Airbender Ascension blinks the Manta away and back again during your end step to trigger its leave-the-battlefield ability, granting you an endless chain of extra turns.