Kaya the Inexorable + Wormfang Manta + Hushwing Gryff + Yahenni, Undying Partisan

Kaya the Inexorable

Wormfang Manta

Hushwing Gryff

Yahenni, Undying Partisan

How it works

1. Activate Kaya the Inexorable's first ability by putting a loyalty counter on it, putting a ghostform counter on Wormfang Manta.
2. Activate Yahenni by sacrificing Wormfang Manta.
3. When Wormfang Manta dies, its second ability and its ghostform ability trigger.
4. Resolve the ghostform trigger, returning Wormfang Manta from your graveyard to your hand and creating a 1/1 Spirit creature token.
5. Resolve the second trigger, causing you to take an extra turn after this one.
6. Resolve the Yahenni ability, giving it indestructible until end of turn.
7. Cast Wormfang Manta by paying 5.
8. Wormfang Manta's first ability does not trigger due to Hushwing Gryff.
9. Repeat each turn.

This clever loop uses Kaya the Inexorable's +1 ability to protect Wormfang Manta with a ghostform counter, allowing Yahenni, Undying Partisan to cleanly sacrifice the Manta whenever you need. Because Wormfang Manta leaves the battlefield, its delayed trigger grants you an extra turn, while the ghostform counter simultaneously returns it straight to your hand for re-casting. The secret to breaking the Manta's built-in drawback is Hushwing Gryff, whose passive ability silences the creature's enter-the-battlefield trigger so you never accidentally skip your own turns.