Rakdos, the Muscle + Priest of Gix + Haunted Crossroads + Umbral Collar Zealot + Jet Medallion

Rakdos, the Muscle

Priest of Gix

Haunted Crossroads

Umbral Collar Zealot

Jet Medallion

How it works

1. Activate Umbral Collar Zealot 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 Umbral Collar Zealot 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 loop works its magic by turning Priest of Gix into a self-sustaining engine fueled by its own entry ritual, where Jet Medallion reduces its casting cost so that the mana produced covers the loop entirely. Haunted Crossroads deftly returns the priest right back to the top of your library in response to the sacrifice, allowing Rakdos, the Muscle to exile it and set up its free-to-play exile zone. Finally, Umbral Collar Zealot provides the sacrifice outlet to keep the cycle turning endlessly, letting you cycle through your entire deck and reap infinite triggers.