Otherworldly Escort + Amoeboid Changeling + Thornbite Staff + Viscera Seer

Otherworldly Escort

Amoeboid Changeling

Thornbite Staff

Viscera Seer

How it works

1. Activate Amoeboid Changeling's second ability by tapping it, causing Otherworldly Escort to lose all creature types until end of turn.
2. Activate Viscera Seer by sacrificing Otherworldly Escort.
3. When Otherworldly Escort dies, it and Amoeboid Changeling trigger.
4. Resolve the Amoeboid Changeling trigger, untapping it.
5. Resolve the Otherworldly Escort trigger, returning itself from your graveyard to the battlefield as a Spirit Detective.
6. Resolve the Viscera Seer ability.
7. Repeat.

This clever loop uses Amoeboid Changeling to strip away Otherworldly Escort's native creature types, neatly bypassing its built-in clause that prevents it from returning if it's already a Spirit. Once Otherworldly Escort is sacrificed to Viscera Seer, it successfully triggers its own resurrection, returning to the battlefield as a new object and resetting its types while fueling your death triggers and scry ability. Thornbite Staff sits on the sidelines ready to untap Amoeboid Changeling through every iteration, ensuring you can repeat the type-stripping process endlessly.