I kind of just want to let everyone create a cast of characters and see who kills who.  Maybe each character you create has a specific role.  Commander class leads armies better than others, Fighter classes are excellent warriors, Spymasters allow you to meta-game, Snakes give you the ability to poison other characters, Watchmen can spot poisons, Tongues can persuade others to join you or do your bidding, etc.  What other types could we have?