The Ultimate weapons ant vital, but are good to have, i only got Aurons, and it was a pleasure to watch him do over 9999 each time. The Sigils are the most important ones, or your ppl wont do over 9999 and will still have no AP on them. To get the Celstial mirror you must take the cloudy mirror to a place on the new road at macalania forrest, im to lazy to give more info on that, mostly cause u can find out on that site that was givin b4!