So I know it might seem like a stupid answer, but what I really mean is the ability you get when you master a class. I found out that its class specific. For example, I leveled Petra up to max out Theif, but when I change her into a mercenary, her steal ability is gone. So what's the point of maxing out your class? What if I get too many abilities and i wanna trade one out for a new one? Is there a way to keep your abilities, of so how? I know that there are leveling stats the differ based on what class you're in, bit is that it? What's the benefit of mastering out a class? Sorry if this is confusing, it's just that I've never been confused with a class system before xD