<P> As with sanctioned formats, most casual formats can be categorized into Constructed or Limited formats . Casual constructed formats include: </P> <P> Frontiersman is a format developed by Japanese stores Hareruya and BigMagic in 2016 (not to be confused with Frontier Magic). Similar to Modern, card sets are legal from M15 onwards, based on the new card frame . </P> <P> Gentry is a budget Constructed format based on Standard developed by Niels Viaene, a Level 3 Magic Judge . It was designed to allow everyone access to a constructed environment with a comparatively low financial barrier of entry . Gentry uses the Standard ban list and decks may contain up to 4 unique Rares and / or Mythic rares and up to 15 Uncommons . </P> <P> Pauper is a Magic variant in which card legality is based on printed rarity . In Pauper, only common cards are legal, or rather any card printed at common rarity, by deck construction rules . However, as it is a Magic Online format, typically only cards that have been printed at common on MTGO are legal to play . It was added as an official format on Magic Online December 1, 2008 </P>

Magic the gathering difference between standard and modern