Rakdos, the Muscle + Priest of Gix + Haunted Crossroads + Goblin Bombardment + Stone Calendar

Rakdos, the Muscle

Priest of Gix

Haunted Crossroads

Goblin Bombardment

Stone Calendar

How it works

1. Activate Goblin Bombardment 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 Goblin Bombardment ability from step 1, dealing 1 damage to any target.
6. Cast Priest of Gix from exile by paying 2.
7. When Priest of Gix enters the battlefield, it triggers, adding .
8. Repeat.

This looping mechanism relies on Goblin Bombardment to continually sacrifice Priest of Gix, whose entry trigger funds the black mana needed to recur it. While Haunted Crossroads lets you fish Priest of Gix back to the top of your library for a single black mana, Stone Calendar is the secret engine that drops its casting cost down to just two generic mana, leaving you with a net profit of one black mana per iteration. Rakdos, the Muscle takes full advantage of this constant sacrifice cycle by exiling your entire library—card by card, equal to the mana value of the sacrificed creature—leaving you free to cast your entire deck and close out the game through infinite damage from Goblin Bombardment.