Mixed Up Masters. A variation of the "Masters Edition" of Phase 10, contributed by Keith Morris There are 2-4 players. Take all of the "phase" cards, shuffle them together and deal them out, 10 to each player.. Phase 10 is a card game created in 1982 by Kenneth Johnson and sold by Mattel, which purchased the rights from Fundex Games in 2010. Phase 10 is based on a variant of rummy known as Liverpool rummy, and is a member of the contract rummy family.. Scanning all available deals for Phase 10 Masters shows that the average price across all deals is $1,962.09. The lowest price is $17.99 from BeallsFlorida.com while the highest price is $25,164.15 from WebstaurantStore.. Phase 10 Rules Phase 10 is another popular card game by Mattel, the makers of Uno. This card game resembles Rummy, but the main difference is that you have to complete 10 different types of match-ups or Phases, in order to win the game.. Phase 10 Masters Edition Card Game Rules Step things up to the master level with Phase 10 Masters Edition. Classic card game from the makers of UNO!. Phase 10 Card Game Rules Phase 10 is Fundex card game designed for two to six players. Players compete to complete 10 sequential phases, with the first player completing “Phase 10” being the winner..