Chaos Gnome Illusionist
I'm having trouble coming up with a gnome illusionist that can actually be effective in battle. So far I've been really useful outside of combat, but as soon as weapons are drawn I mostly end up duplicating myself and distracting random npcs. Especially looking for some decent prestige classes.
My gnome is actually half-chaos half-svirfneblin, but her father followed her mother to the surface (or as near as he could bear). She's just as fluent in undercommon and has a general knowledge of life in the underdark, but she prefers to be closer to the surface.