File1248555032.jpg-(107 KB, 800x1000, 095b9e0c3d8538108a39c504411794(...).jpg)
That's some pretty cool stuff. Nothing wrong with being fairly straightforward or adding a little quirk to avoid a stereotype.
Well, thinking on what I've said and the suggestions I've gotten, here's my character more or less at present, just to get stuff together in one post. Also because discussing stuff like this helps me get my thoughts together/get ideas flowing.
Night caste. Whatever else they are, they're an athletic/acrobatic martial artist. Possibly Haltan, and exalted due to an incident involving Linowans, the slave trade, Fair Folk, and fire. Has some decent stealth and theivery skills which would need to be explained somehow, as they probably didn't start off as a thief. Same goes for favored abilities like investigation, integrity, resistance, and socialize, though some may make more sense as something "natural" than others.
Personality-wise, I should probably avoid an enthusiastic hero type as the other members of the circle will probably have that covered (one of them is >>5251154 still not sure how Zenith fits shounen hero. Kamina, maybe, but he was a glorious, inspiring leader). Probably don't want to go an extreme opposite, as it'd just bring in trouble or be bad for party unity, but a trio of characters with very, very similar goals and ways of thinking may be a little uninteresting. Even if it may not be wholly necessary a little on how they've gotten their artifacts may be worth mentioning. I fully intend my heaven's glory shroud to be a stolen tablecloth, for example.
Random silliness and other thoughts: The character may be an ex-servant, or a courier. Or maybe even worked as a guard for a while. Presumably, they picked up their martial arts training (both supernatural and normal) somewhere. One old background idea had the character basically as Kohaku, but that's possibly not very fitting for Night caste, or even wise in general, though it gives good reason to make a few Enemies.