Ehhh, dwarves feel plenty magicky, just not of the casting kind. Magic weapons and armor and crafts. Maybe some way to make magic engravings? Its all about the right word for your magic caster.
Dwarves - Enchanters or Runesmiths to make their magical crafts
Orcs - Shaman, IIRC this is already planned
Humans - Wizards, the jack of all trades of caster, dabbles in bits of everything
Succubus - Sorceress, since sorcery is often considered demonic or evil side, although its perhaps more calling on demons than being demons?
Naga - Sea-Witch? Siren?
Kobold - Witch Doctor? Bone Reader?
You just gotta find the right word and suddenly the caster makes sense.
Yeah, I agree very much with this delineation of the different 'magics' for each race
I agree wholeheartedly that dwarves are not of the more...obvious type of caster, (fireball slinging and such). Orcs being shamanistic sounds very appropriate as well.
Humans...I'm not sure what to think. I recall before thier 'magic' access was restricted to 'buying teachings' from other races. I think this could still work fine. They have access to all the magics, but have to pay for it, and don't have access to the 'top tier' magics.
Succubi, well, they are pretty much magic themselves by their nature alone. Heck, with the 'burning up' bug that happens when they die currently, [I recall reading this in the succubi thread recently], I think it almost makes them feel more magical. I mean, there is so much Circus !FUN! energy inside them they explode like napalm filled pinatas on death.
Seriously though, I think it does make the feel more like they are not 'earthly beings' if they don't leave a corpse, like thier physical body does not actually exist as but a reflection of thier dark soul given form by magic.... good lord I rambled off topic there.
Naga...That's a tough one to be sure. I mean, Siren sounds cool, but would that step on the toes of Succubi? Beguiling, seduction and all that?
Kobolds, I think that their magic should be focused upon using bones and totems, perhaps with some sort of Ancestor Worship (communing with ancestors to bestow skills, maybe something to do specifically with your dead kobold's souls if at all possible?), as well as stuff to do with Starsigns, (a witch doctor does a dance and calls upon a star sign for some sort of effect), since the 12 star sign castes still matter o kobolds