I beat Sephy at lvl 59 >.>;; (On Proud mode after I learned how to fight him on Standard) But it took me a crap load of tries. Once you figure out how he moves and can counter his reaction command you have him beat. After he powers up tho...Then it gets tricky since he hardly leaves you any time to get a combo in, but still yet same rule applies. Figure out how he moves and you can beat him quite easily, but always bring Elixers as a back-up
![Tongue :P](./images/smilies/tongue.gif)