Xu-Ifit, Osteoharmonist + Thornbite Staff + Umbral Collar Zealot

Xu-Ifit, Osteoharmonist

Thornbite Staff

Umbral Collar Zealot

How it works

1. Activate Xu-Ifit by tapping it, returning a creature card from your graveyard to the battlefield.
2. Activate Umbral Collar Zealot by sacrificing the creature returned in step 1.
3. When the creature dies, Xu-Ifit triggers, untapping itself.
4. Resolve the Umbral Collar Zealot ability.
5. Repeat.

This clever loop turns Xu-Ifit, Osteoharmonist into a one-man necromancy engine by leaning on the triggered untap ability built into Thornbite Staff. Since Xu-Ifit enters the battlefield as a Shaman, the Staff automatically equips to it, granting it a death-triggered untap whenever *any* creature bites the dust. Once you sacrifice that returned creature to Umbral Collar Zealot's ability to surveil 1 and send it right back to the yard, the death of that creature untaps Xu-Ifit, allowing you to immediately tap it again to repeat the whole process.