Two brothers. Thousands of machines. One shattered world.

What began as a rivalry between Urza and Mishra grew into the most devastating war in Dominaria's history. The Brothers' War brings this legendary conflict to life with gigantic Constructs, lost technology and artifacts that changed the future of Magic forever.

Prototype lets you cast enormous war machines earlier in a smaller form. Powerstones supply the energy for your artifacts, while Unearth brings fallen machines back to the battlefield one last time.

The set contains 63 Retro Artifacts, each also with unique Schematic artwork. All 63 schematics also exist as rare serialized versions, numbered /500, found exclusively in Collector Boosters.