Toph, the First Metalbender + Toph, Hardheaded Teacher + Goblin Bombardment + Orzhov Basilica

Toph, the First Metalbender

Toph, Hardheaded Teacher

Goblin Bombardment

Orzhov Basilica

How it works

1. Cast the artifact by paying 0.
2. Toph, Hardheaded Teacher triggers, earthbending Orzhov Basilica.
3. Resolve the artifact spell.
4. Activate Goblin Bombardment by sacrificing Orzhov Basilica.
5. When Orzhov Basilica dies, Toph, Hardheaded Teach triggers, returning Orzhov Basilica from your graveyard to the battlefield tapped.
6. When Orzhov Basilica enters, it triggers, returning the artifact cast in step 1 from the battlefield to your hand, as it's a land due to Toph, the First Metalbender.
7. Resolve the Goblin Bombardment ability
8. Repeat.

This clever loop transforms a zero-cost artifact into an engine of endless devastation by weaponizing Toph, the First Metalbender's static ability, which permanently turns all your nontoken artifacts into lands. Once that foundation is set, casting your artifact triggers Toph, Hardheaded Teacher to earthbend Orzhov Basilica into a creature, allowing you to sacrifice it to Goblin Bombardment for a point of damage. Because Orzhov Basilica is a land, its death triggers Toph, Hardheaded Teacher to return it straight to the battlefield. Finally, Orzhov Basilica's own entry trigger forces you to return a land to your hand—and since Toph, the First Metalbender makes your zero-cost artifact count as a land, it bounces right back to your hand, ready to cast all over again for an infinite storm count and infinite damage.