Assassin- Assassins, I think are the perfect pkillers... with the ability to backstab, they are feared even by higher level player. Assassins can also peek into players inventory and can even envenom their weapons at lvl 7 and at lvl 13 can riposte, which is a kick ass ability. It's a combo of both dodging and a weak hit. An Assassin can also scout and dodge attacks. An assassin needs to pledge to Shadow Masters to level til lvl 13 and you can rescind and pledge to another clan. I think the assassin class should be played by people who love to fight other players and understands when to flee or not. Although the assassin can do massive damage, they don't have a ton of hp, usually getting only 6 hp a lvl. This class shouldn't be played by people new to the mud.
Stats for Assassins - I would probably have to go with... strength, intel and piety. These are the 3 main stats for Xelloz (lvl 20 assassin). Although the roh webpage says that dex is very important for the assassin, many of the players who have gotten past lvl 10 believe that dex isn't important. I, myself tested this theory out myself and found that dex only helps you backstab and sneak below the lvl of 10. Once you past that lvl, your attempts of backstabbing is based on your lvl.