Hum, those ideas might be ok for the general idea, I guess.Maybe a class specialized on debuffs or a class specialized an fast movement (like sprinting on 4 directions repeatedly) with some skills that requires speed, adding more damage according to the speed, or a class that leaves decoys that give a large ammount of aggro, maybe a class that uses AoE skills (maybe like the Dryad's Blessing, but with more damage), or a class that uses fallen stars as a catalyst for some skills, like making stars fall or a special buff for all allies that changes depending the moon phase, it would be nice a "vampire" class too, like some hp-draining skills.
I just had some ideas. If you like them that's good, i you don't, that's good too.
Vampire would be more fitting as a kind of debuff or curse, as race is not really a good idea.A vampire would probably be more suitable for a race, if you want to use that name.
But I guess name isn't of any particular importance as far as the making of classes goes, so whatever.
A second mage class? Maybe.what about a 2. class mage? or summoner?