This will eventually be a 480 card cube consisting of only cards from Mirrodin (1st and 2nd Mirrodin blocks, Phyrexia All Will be One, Mirrodin/Phyrexia centric cards from other sets such as March of the Machines or Horizon sets). The card list is very fluid and will be changing a lot until I finalize my ideas, see what cards I already have, and determine what else to acquire.