Shining Force Neo

I am in hail prison now in the game and am at the part where you fight Greid. I’m lvl 43 and that boss fight wipes the floor with my party. Any suggestions or tips on how to beat this guy?

I’ve looked on gamefaqs, and there’s only 1 faq for this game which isn’t very detailed.

I remember beating Gried, but I don’t remember exactly what i did. I always use a bow and arrow. I concentrate on the surrounding enemies and let my two comrades kill Gried. I have to go back and see how I got him. It took me a couple times to kill him and I was probably around your same levels.