I haven't actually ever built a cube, but I had an idea for one and was looking for some input.
The main idea would be to have each color pair focus on an artifact-related mechanic from a different plane. I think I can do this all with the Modern card pool as well.
: Esper uh colored artifacts
: Dominaria historic
: Ixalan treasure
: Tarkir prowess (Renowned Weaponsmith!)
: Zendikar Eldrazi/devoid colorless aggro
: New Phyrexia - is it basically impossible to support infect in one color pair in a cube?
: Bablovia Contraptions
: Kaladesh vehicles
: Mirrodin metalcraft (technically a repeat plane but slim pickings)
: Innistrad investigate
Has anybody tried anything like this? Many of these themes show strongly on fewer than 20 cards, is that enough to support a theme in a 360 card cube?
Also, this is kind of subjective but would you feel it enhances or detracts from the theme if I were to include off-color cards from each plane, like black Esper, blue historic, red treasure and white prowess? Origins, the set that sort of inspired this, did have other color cards from each plane but they weren't mechanically tied to the plane's theme.