Chthonian Nightmare + Priest of Gix + Skittering Precursor + Thermopod

Chthonian Nightmare

Priest of Gix

Skittering Precursor

Thermopod

How it works

1. Activate Thermopod's second ability by sacrificing Priest of Gix, adding .
2. When Priest of Gix dies, Skittering Precursor triggers, creating a 0/1 Eldrazi Spawn creature token.
3. Activate Chthonian Nightmare by paying EEE, sacrificing the Eldrazi Spawn and returning Chthonian Nightmare from the battlefield to your hand, returning Priest of Gix from your graveyard to the battlefield.
4. When Priest of Gix enters the battlefield, it triggers, adding .
5. Cast Chthonian Nightmare by paying 1.
6. When Chthonian Nightmare enters the battlefield, it triggers, causing you to get EEE.
7. Repeat.

This ingenious loop hinges on recycling Priest of Gix to repeatedly generate dark mana, while Thermopod acts as the sacrificial outlet to convert your creatures into red mana. Skittering Precursor is the crucial linchpin here, translating every sacrifice into a cheap Eldrazi Spawn token that fuels the exact energy and mana requirements needed to sustain the chain. Finally, Chthonian Nightmare ties the whole operation together by bouncing itself back to your hand for reuse, letting you recast it to continuously pull the Priest right back out of the graveyard.