Wormfang Manta + Lilysplash Mentor + Doorkeeper Thrull

Wormfang Manta

Lilysplash Mentor

Doorkeeper Thrull

How it works

1. Blink Wormfang Manta using Lilysplash Mentor. 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.

By leveraging Lilysplash Mentor's repeatable blink ability, you can continuously exile and return Wormfang Manta to the battlefield to farm its leaves-the-battlefield trigger for infinite extra turns. Ordinarily, Wormfang Manta's enters-the-battlefield ability would force you to skip your next turn, neatly canceling out the bonus, but Doorkeeper Thrull shuts down those pesky entry triggers entirely. With Doorkeeper Thrull suppressing the drawback while leaving the departure trigger intact, you get all the extra turns with zero downside—leaving your opponents hopelessly locked out of the game.