Quote Originally Posted by TurkSlayer
You don't need KOTR to beat Sephi, or Omnislash for that matter. Just use the best attacks you have, but don't waste them on his first form. Normal attacks should be fine for that. He's not that hard.
I completely agree with this. I didn't have either KOTR or Omnislash, and he was still a piece of cake. Don't stress over him.