Xu-Ifit, Osteoharmonist + Intruder Alarm + Viscera Seer

Xu-Ifit, Osteoharmonist

Intruder Alarm

Viscera Seer

How it works

1. Activate Xu-Ifit by tapping it, returning a creature card from your graveyard to the battlefield.
2. When the creature enters the battlefield, Intruder Alarm triggers, untapping all creatures.
3. Activate Viscera Seer by sacrificing the creature returned in step 1.
4. Repeat.

This elegant loop turns Xu-Ifit, Osteoharmonist into a tireless resurrection engine by pairing its activated graveyard recursion with Intruder Alarm's static ability, which untaps all creatures every time a new one enters the battlefield. Because Xu-Ifit itself untaps during this cascade, you can feed the returned creature to Viscera Seer to sacrifice it and sculpt your draws with infinite scry triggers. The result is a perpetual motion machine of life, death, and battlefield triggers that costs nothing more than a graveyard full of fodder.