Umbral Collar Zealot + Faceless Butcher + Metamorphosis Fanatic

Umbral Collar Zealot

Faceless Butcher

Metamorphosis Fanatic

How it works

1. Cast Faceless Butcher by paying its mana cost.
2. When Faceless Butcher enters, its first ability triggers, exiling Metamorphosis Fanatic.
3. Activate Umbral Collar Zealot by sacrificing Faceless Butcher.
4. When Faceless Butcher dies, its second ability triggers, returning Metamorphosis Fanatic from exile to the battlefield.
5. When Metamorphosis Fanatic enters, it triggers, returning Faceless Butcher from your graveyard to the battlefield.
6. When Faceless Butcher enters, its first ability triggers, exiling Metamorphosis Fanatic.
7. Resolve the Umbral Collar Zealot ability.
8. Repeat from step 3.

This clever loop relies on an infinite recursive dance between Faceless Butcher and Metamorphosis Fanatic, where entering the battlefield causes each to fetch or rescue the other in a perpetual cycle. While Faceless Butcher continuously exiles the Fanatic, its own sacrifice to Umbral Collar Zealot breaks the hold, allowing Metamorphosis Fanatic to return from the graveyard and instantly bring the Butcher right back alongside it. Meanwhile, the Zealot doesn't just act as the sacrificial outlet to keep the engine running—its static sacrifice ability also weaponizes the loop by granting you infinite surveil triggers to sculpt your library on the fly.