Orah, Skyclave Hierophant + Sister Hospitaller + Morophon, the Boundless + Thermopod

Orah, Skyclave Hierophant

Sister Hospitaller

Morophon, the Boundless

Thermopod

How it works

1. Activate Thermopod by sacrificing Morophon.
2. When Morophon dies, Orah triggers, returning Sister Hospitaller from your graveyard to the battlefield.
3. When Sister Hospitaller enters, it triggers, returning Morophon from your graveyard to the battlefield and causing you to gain 7 life.
4. Activate Thermopod by sacrificing Sister Hospitaller.
5. When Sister Hospitaller dies, Orah triggers, allowing you to return a Cleric with mana value 5 or less from your graveyard to the battlefield.
6. Repeat.

This clever loop relies on Morophon, the Boundless acting as a Cleric thanks to its changeling ability, allowing it to be continuously caught in Orah, Skyclave Hierophant's recursive triggers. When you sacrifice Morophon to Thermopod for red mana, Orah spots a Cleric dying and uses its triggered ability to bring back Sister Hospitaller from your graveyard. Sister Hospitaller's entry then triggers to pluck Morophon right back out of the graveyard while padding your life total, and you can repeat the process by sacrificing Sister Hospitaller to Thermopod next.