User blog comment:Skeith9/Heroic Spirits Speculation/@comment-175.139.21.206-20140707125225/@comment-24754018-20140707135017

Off the top of my head after taking  quick glance:

He's got pretty high stats, but I don't know enough about the character (at this moment) to tell if they are justified or not. I suppose the replacement ruler of Britain would have to be strong, after that Camlann battle thing.

Maybe lower Magic Resistance to B? If Arthur has the highest rank due to her dragon aspect and Saber Class, then it would probably be reasonable to give Kai a slightly lower rank.

Can you give an idea of what the NPs do? Or have you not entirely decided yet?

That's just my first impression, it may be subject to revision.