I actually prepare quite well for the final battle, as before this I think I read that the final battle is very tough. Need to hide here and there and bla bla bla.... I even make 100+ of rank 10 healing potions for in case of emergency. But hell when I finished the battle, it only took me less than 5 potions for it. I really cant believe that it was the final battle, and do a reload and set it to high difficulty mode. I was playing on medium difficulty at first. After numerous testing, the battle can be finish with the use of only 1 healing potion, without healing skills needed

That why I keep wondering why so many always complain on how tough it is on the final battle.
Since I on my second play through now in difficulty mode, I will later try to enter the final battle at the lower level, which is around maybe lvl 32, 33 to see how challenging it can be.