Requires

Rakdos, the Muscle must be on the battlefield. Priest of Gix must be on the battlefield. Haunted Crossroads must be on the battlefield. Goblin Bombardment must be on the battlefield. Pawn of Ulamog must be on the battlefield. Mana needed:

Steps

1. Activate Goblin Bombardment 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 0/1 Eldrazi Spawn 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 Goblin Bombardment ability from step 1, dealing 1 damage to any target.
7. Activate the Eldrazi Spawn by sacrificing it, adding .
8. Cast Priest of Gix from exile by paying .
9. When Priest of Gix enters the battlefield, it triggers, adding .
10. Repeat.

Results