Archghoul of Thraben + Mortuary + Rooftop Storm + Goblin Bombardment

Archghoul of Thraben

Mortuary

Rooftop Storm

Goblin Bombardment

How it works

1. Activate Goblin Bombardment by sacrificing Archghoul of Thraben.
2. Mortuary and Archghoul of Thraben trigger.
3. Resolve the Mortuary trigger, putting Archghoul of Thraben on top of your library from your graveyard.
4. Resolve the Archghoul of Thraben trigger, revealing Archghoul of Thraben from the top of your library and putting it into your hand.
5. Resolve the Goblin Bombardment ability, dealing 1 damage to any target.
6. Cast Archghoul of Thraben by paying 0.
7. Repeat.

This loop creates a self-sustaining engine by turning the grave-to-library effect of Mortuary into a repeatable free-casting cycle, anchored by the cost-reduction of Rooftop Storm which lets you recast your sacrificed creatures for zero mana. As you sacrifice your creatures to Goblin Bombardment, Archghoul of Thraben ensures you can always find your fallen pieces or manipulate your draws to keep the loop rolling endlessly.