Kaya the Inexorable + Wormfang Manta + Tocatli Honor Guard + Bartolomé del Presidio

Kaya the Inexorable

Wormfang Manta

Tocatli Honor Guard

Bartolomé del Presidio

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 Bartolomé del Presidio 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 Bartolomé del Presidio ability, putting a +1/+1 counter on it.
7. Cast Wormfang Manta by paying 5.
8. Wormfang Manta's first ability does not trigger due to Tocatli Honor Guard.
9. Repeat each turn.

This clever loop manages to bypass Wormfang Manta's built-in drawback entirely—normally, its entry trigger would make you skip your next turn, but Tocatli Honor Guard steps in with its static ability to silently shut that detrimental trigger off for good. Meanwhile, Kaya the Inexorable grants the Manta a ghostform counter so that when Bartolomé del Presidio sacrifices it to grow larger, the Manta conveniently returns straight to your hand instead of staying in the graveyard. Recasting the Manta then triggers its leaves-the-battlefield ability to hand you an extra turn, letting you repeat this entire sequence indefinitely.