This build aims to combine the spellcasting power of a full wizard (with one arcane prestige class), and the stealth provided by Hide in Plain Sight (HiPS). The combinations lends this build an edge that most other Wizards can only dream of. With HiPS you can dissappear instantly in the middle of a fight, only to reappear some distance away, to unleash a barrage of spells. And you can do this repeatedly (or at least, as long as you have spells to throw out in a barrage anyway).