As for skills, passive ones like Damage Reduction would have to increase in effects over time... (A lvl 50 character wouldn't negate the same amount of damage as a lvl 1... although perhaps the same %? It could be possible to make that static.) but the skills themselves wouldn't fundamentally change or anything. I assumed the level of the unlabeled skills simply corresponded to the level of the character. We need to figure out what sort of limits to put on them though as far as power and number and such.