Toph, the First Metalbender + Toph, Hardheaded Teacher + Bloodflow Connoisseur + Azorius Chancery

Toph, the First Metalbender

Toph, Hardheaded Teacher

Bloodflow Connoisseur

Azorius Chancery

How it works

1. Cast the artifact by paying 0.
2. Toph, Hardheaded Teacher triggers, earthbending Azorius Chancery.
3. Resolve the artifact spell.
4. Activate Bloodflow Connoisseur by sacrificing Azorius Chancery.
5. When Azorius Chancery dies, Toph, Hardheaded Teach triggers, returning Azorius Chancery from your graveyard to the battlefield tapped.
6. When Azorius Chancery 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 Bloodflow Connoisseur ability
8. Repeat.

This loop turns a free artifact into an endlessly re-castable engine by weaponizing Toph, the First Metalbender, whose static ability cleverly transforms all your nontoken artifacts into lands. With that foundation set, Toph, Hardheaded Teacher handles the heavy lifting by earthbending Azorius Chancery into a creature whenever you cast a spell, allowing Bloodflow Connoisseur to cheerfully sacrifice it to the graveyard. Because that earthbended land's death trigger safely returns it to the battlefield tapped, Azorius Chancery's own entry trigger then fires to bounce your zero-cost artifact back to your hand—ready to be recast and repeat the cycle indefinitely.