Magic: The Gathering/Star Format
Star Format is a 5-person variation of Magic. In Star, a player wins when the two players opposite that player lose (more precisely, the players that come third and fourth after that player in turn order). Players may attack and target any player. The format is called Star because if one draws a line between each player and the players opposite them it forms a pentagram (star). Star can be adapted to work with any of the standard formats. Additionally, it can be adapted for more than five players, by simply deciding which players must lose for a given player to win.