Rakdos, the Muscle + Priest of Gix + Haunted Crossroads + Umbral Collar Zealot + Pawn of Ulamog

Rakdos, the Muscle

Priest of Gix

Haunted Crossroads

Umbral Collar Zealot

Pawn of Ulamog

How it works

1. Activate Umbral Collar Zealot by sacrificing Priest of Gix.
2. When Priest of Gix dies, Pawn of Ulamog and Rakdos trigger.
3. Resolve the Pawn of Ulamog trigger, creating a creature token
4. Holding priority, activate Haunted Crossroads by paying , putting Priest of Gix from your graveyard onto the top of your library.
5. 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.
6. Resolve the Umbral Collar Zealot ability from step 1, putting a +1/+1 counter on it.
7. Activate the Eldrazi Spawn by sacrificing it, adding C.
8. Cast Priest of Gix from exile by paying 3.
9. When Priest of Gix enters the battlefield, it triggers, adding .
10. Repeat.

This ingenious loop turns a simple act of recycling into a bottomless engine of exile and mana. By leveraging Pawn of Ulamog to spawn extra material whenever Priest of Gix meets its end at the hands of Umbral Collar Zealot, you generate the necessary fodder and the mana to keep the cycle turning. Haunted Crossroads neatly returns the Priest to the top of your library just in time for Rakdos, the Muscle to rip through your deck, exiling your library piece by piece so you can cast whatever you find using mana of any type.