Rakdos, the Muscle + Priest of Gix + Haunted Crossroads + Viscera Seer + Cemetery Prowler

Rakdos, the Muscle

Priest of Gix

Haunted Crossroads

Viscera Seer

Cemetery Prowler

How it works

1. Activate Viscera Seer 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 Viscera Seer ability from step 1.
6. Cast Priest of Gix from exile by paying 2.
7. When Priest of Gix enters the battlefield, it triggers, adding .
8. Repeat.

This loop relies on a clever mana-reduction engine where Cemetery Prowler passively shaves {B} off the cost of black creature spells you cast, allowing Priest of Gix to generate three mana while only costing two to replay from exile. By sacrificing the Priest to Viscera Seer, you trigger Rakdos, the Muscle to exile cards from the top of your library—fueling your options while you use Haunted Crossroads to manipulate the top of your library if needed. Because Cemetery Prowler discounts the re-cast, the Priest's entrance generates a net positive mana loop that feeds infinite sacrifices, scries, and leaves your entire library exiled with permission to cast every single spell within it until your next end step.