[2] The five families are:[2][4] The Brokers were initially intended as a law enforcement group, but transformed into the corrupted legal entity during development of the set.

[2] The "golden age" frame is applied to 45 tri-color cards in the set, and the foils have a distinct gilded, metallic sheen.

[5] Writing for Paste, Cameron Kunzelman states that the set is "weirdly experimental on the creative side".

[1] In TheGamer, Joe Parlock states that the Art Deco setting is "vastly different from the high fantasy" typical of Magic.

[4] Stan Golovchuk states in a Polygon article that the set has aesthetics inspired by the 1927 film Metropolis.