This my attempt to build a limited environment that plays like a Masters Set. Unlike a regular cube packs are built like regular
boosters in terms of rarity distribution, so multiples are possible in the pod. I operated under a couple rules for card
selection:

1. Cards have to have a paper printing of the same rarity.
2. Every color needs reasonable interaction at common.
3. Archetypes exist for each color pair, but they're not pushed to the point that it's required to play them.
4. It's ok for rares to be powerful, but I wanted to prioritize threats that have a window to be interacted with.
   This is version 1.0 so I'm sure there is a lot to iterate and improve on, but it was a lot of fun to assemble and hopefully I'll
   have a chance to assemble and draft it soon.
   PS-The common lands in this set work like m19 or Ikoria, with a 40ish% chance to appear in any booster over the basic.