hmmmmmmm, I just had an idea: no diety
why?
The Red Light Goblen Caves gave me this idea. The goblens there worship red flickering lights.
Since Barbarians have no divine ability, I figured they might do soemething simular, thus the reason they have no real spells. I know they have shamans, but if you noticed, Humanoid shamans use ARCANE spells. They probibly think they are divine power, but it is just pure magic. Not to say that she will never someday learn of the Gods, and not to say ALL tribes worship falsely (The icewind dale tribes for instance.) But some tribes, like the red light Gobbies, are completely misguided.
I think I will do the same for this barbarian.