Chthonian Nightmare + Priest of Gix + Skittering Precursor + Viscera Seer

Chthonian Nightmare

Priest of Gix

Skittering Precursor

Viscera Seer

How it works

1. Activate Viscera Seer by sacrificing Priest of Gix.
2. When Priest of Gix dies, Skittering Precursor triggers, creating a 0/1 Eldrazi Spawn creature token.
3. Resolve the Viscera Seer ability, causing you to scry 1.
4. 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.
5. When Priest of Gix enters the battlefield, it triggers, adding .
6. Cast Chthonian Nightmare by paying 1.
7. When Chthonian Nightmare enters the battlefield, it triggers, causing you to get EEE.
8. Repeat.

This elegant loop relies on Chthonian Nightmare to constantly cycle Priest of Gix in and out of your graveyard, utilizing the energy generated by its own entry triggers to fund the recursion. Viscera Seer provides a clean outlet to send the Priest to the graveyard while letting you sculpt your draws with infinite scrys. Meanwhile, Skittering Precursor sits on the board watching your sacrifices, turning each one into an Eldrazi Spawn token that conveniently acts as the fuel needed to bounce the enchantment back to your hand alongside the required energy payment.