The R-Cubed is a lower-power, vintage-legal cube. The goal is to have at least 12 coherent archetypes, and for all of them to be focused on grinding out midrange-y advantages. Cards are selected less for raw power level and instead on their ability to create incremental advantages over the course of a game. Archetypes are based on 2-color pairs, 5 color, and colorless. There is minimal support for 3-color cards. Manabase is based on card advantage.