Toph, the First Metalbender + Toph, Hardheaded Teacher + Goblin Bombardment + Rakdos Carnarium

Toph, the First Metalbender

Toph, Hardheaded Teacher

Goblin Bombardment

Rakdos Carnarium

How it works

1. Cast the artifact by paying 0.
2. Toph, Hardheaded Teacher triggers, earthbending Rakdos Carnarium.
3. Resolve the artifact spell.
4. Activate Goblin Bombardment by sacrificing Rakdos Carnarium.
5. When Rakdos Carnarium dies, Toph, Hardheaded Teach triggers, returning Rakdos Carnarium from your graveyard to the battlefield tapped.
6. When Rakdos Carnarium 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 brilliant engine relies on **Toph, the First Metalbender** to fundamentally rewrite the battlefield by turning all your nontoken artifacts into lands, making a key 0-mana artifact bounceable to its own land-returning effect. When you drop that free artifact, **Toph, Hardheaded Teacher** triggers to earthbend your **Rakdos Carnarium**, transforming the bounce-land into a creature ready to be sacrificed to **Goblin Bombardment**. Because Toph, the First Metalbender ensures your artifacts count as lands, the returning **Rakdos Carnarium** targets and picks up your free artifact when it enters the battlefield. This creates an infinite loop where the bounced artifact fuels Toph, Hardheaded Teacher's triggers while **Goblin Bombardment** converts the looping earthbent land into an endless stream of damage.