Rakdos, the Muscle + Priest of Gix + Haunted Crossroads + Viscera Seer + Cloud Key

Rakdos, the Muscle

Priest of Gix

Haunted Crossroads

Viscera Seer

Cloud Key

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, causing you to scry 1.
6. Cast Priest of Gix from exile by paying 2.
7. When Priest of Gix enters the battlefield, it triggers, adding .
8. Repeat.