Lets pick one of these and get going.
Pauper
Pauper is a Magic variant in which card legality is based on in-game rarity. In Pauper only common cards are legal.
Peasant
While in Pauper only common cards are legal, in Peasant a deck may contain up to 5 uncommon cards and the rest must be common. Peasant Magic was created by Rob Baranowski[37] who felt that players with limited access to cards should still have an opportunity for competitive play. Tournaments for this format have taken place at Gen Con since 2001. However, the original banned list is considered to be outdated and most tournaments are played by the rules of the largest active Peasant community.[38]
Noble
Noble is a variation on the pauper format in which a deck must contain a single rare or mythic rare (the eponymous Noble), and may contain up to four uncommons. The Noble begins the game face-down in the command zone, and may be cast from there at any time allowed by normal game rules. After it is cast, the Noble is treated like any other card, and cannot return to the command zone.