Rakdos, the Muscle + Priest of Gix + Haunted Crossroads + Phantom Train + Duskwatch Recruiter // Krallenhorde Howler

Rakdos, the Muscle

Priest of Gix

Haunted Crossroads

Phantom Train

Duskwatch Recruiter // Krallenhorde Howler

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 2.
7. When Priest of Gix enters the battlefield, it triggers, adding .
8. Repeat.

This intricate engine relies on Rakdos, the Muscle to leverage your sacrifices into exiled cards you can freely play, while Phantom Train provides the loop's output by turning any sacrifice into a growing +1/+1 counter threat. Priest of Gix acts as the fuel, refunding black mana upon entry to keep the cycle going. Meanwhile, Haunted Crossroads efficiently recycles that Priest straight back to the top of your library for easy access, and Duskwatch Recruiter // Krallenhorde Howler reduces your creature spell costs so you always have enough mana to replay everything.