This is a set cube for The Brothers' War designed to replicate the draft environment, with 4 Commons, 2 Uncommons, 1 Mythic/Rare in the cube overall. I might fiddle with the number of commons from 4-6, depending on how closely I want it to resemble a true draft experience.

Retro Artifacts: Many of these cards provide a great experience in draft and can lead to some unique drafts, but not all of them are playable in a format this quick. I intend on starting the cube with all of the Retro Artifacts, and then adding more powerful or interesting artifacts into the mix.
The mix of retro artifacts in draft boosters is 66% Uncommon, 27% Rare, 7% Mythic. Many of the uncommon retros have good synergy with some of the best archetypes, so I don't want to fiddle with the retro mix too much while I'm still preserving the draft environment.

I intend on proxying any card over about 3 dollars, unless I already have it or can trade for them.