This cube is built around 52 Planeswalker packs; 10 of each color and two colourless. It is not compatable with JMP and J22 because they have 3 rare nonland cards.

Most decks have four "pathway" lands but I consider there's only one land in each pack that works with two-color decks. Some packs are running Prismatic Vista or utility lands.

Generally the packs are singleton. If there are near-fuctional reprints I have used two cards with the same name. There are some doubles for playability.