GG, I think you're missing a point. If I have a list of skills (no set class) and develop ones that I enjoy using more than others I still have a "custom class" but without the name. Granted you have a lot more mix and match so just about everyone is a little different, but it's still a class without a class name to it. Course I could be reading you wrong. So since we all know various games with actual classes, why don't you tell me a title of one that only skills based and has no classes.

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"BOY: On a hot summer night, would you offer your throat to the wolf with the red roses? GIRL: Will he offer me his mouth? BOY: Yes. GIRL: Will he offer me his teeth? BOY: Yes. GIRL: Will he offer me his jaws? BOY: Yes. GIRL: Will he offer me his hunger? BOY: Yes. GIRL: Again, will he offer me his hunger? BOY: Yes! GIRL: Yes. BOY: On a hot summer night, would you offer your throat to the wolf with the red roses? GIRL: Yes. BOY: I bet you say that to all the boys!" -Meatloaf