To beat ruby, first go around kill two of ur party members... leavin' only 1 member left so ruby won't use sandstorm And then go fight ruby... Now... The guy who is left cast hades right away to stop Ruby, then tell the guy to cast revive or life or what ever it was to revive ppl (it's been a while) don't use pheonix... because that will heal ruby... Then just perform the method... hades/knights of the round table... repeat... you should finish him ez :]