Now I know that this is going to piss some folks off, and I know that I have nothing to do with this RP, but I don't think that you should allow Kalabar to play with that character.
If you're going to let him play a character that is a Demon (who are generally presented as horrible monsters, but I guess his is a human with samurai skills?), he should at least do it well, but... Well, I think the character right-up speaks for itself.
And what is with opening up a Bato Jitsu arena?! That just flat out doesn't make sense. First of all, Bato Jitsu is one skill, drawing out your sword really fast; second, in the medieval ages, they did not just build arenas for skills they could NEVER HAVE KNOWN!
Unless Caladin is in Japan, which I doubt.
I thus bid you adieu.