Item Rating(potential) and Enhancement(star) System

I'd like to add that those 800x skills also exist in other jobs. 800x, 1000800x, 2000800x, and 3000800x are all the IDs I can find with the same skills. Adventurer, Cygnus, Aran, Evan, and Resistance Beginner.

I think it's safe to say they're the bonus from scrolls.