What started as a disagreement between Urza and Mishra later escalated into a comprehensive war that shaped the future of the entire multiverse.

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Through Dominaria's locales, characters, and sacrifices, we will witness the planar conflict escalate with artifacts, giant creatures, and much more.

The Brothers' War is designed as an "event set", meaning its mechanics are built around an event rather than a world. In this case, the set revolves around the brothers' war, a major event in Magic's history.

The set includes the Powerstone artifact type, introduced in Dominaria United. Powerstones are on tokens with a {T}: Add {C} ability. The mana cannot be used to cast a nonartifact spell.