Rakdos, the Muscle + Priest of Gix + Haunted Crossroads + Temur Battlecrier + Phantom Train

Rakdos, the Muscle

Priest of Gix

Haunted Crossroads

Temur Battlecrier

Phantom Train

How it works

1. Activate Phantom Train by sacrificing Priest of Gix.
2. When Priest of Gix dies, Rakdos triggers.
3. Holding priority, activate Haunted Crossroads by paying , putting Priest of Gix from your graveyard onto the top of your library.
4. Resolve the Rakdos trigger, causing you to exile the top three cards of your library with the ability to play them until your next end step.
5. Resolve the Phantom Train ability from step 1.
6. Cast Priest of Gix from exile by paying at most 1.
7. When Priest of Gix enters the battlefield, it triggers, adding .
8. Repeat.

This intricate loop spins up infinite black mana and endless sacrifice triggers by continually cycling Priest of Gix back to life through the clever orchestration of your graveyard and exile zones. Phantom Train acts as the engine's catalyst, allowing you to convert your creatures into artifact fuel while growing itself with +1/+1 counters. Meanwhile, Rakdos, the Muscle watches over the carnage, exiling your library card by card to let you play whatever you hit with the mana generated by the Priest. To keep the gears turning affordably, Haunted Crossroads fishes the Priest right back to the top of your library for a single black mana, while Temur Battlecrier discounts your spells to ensure the loop remains net-positive.