This isn't a criticism. I think that I would need to play something like this first to form an opinion on it because your ideas are just that ideas. In reality, the restrictions of the engine will change what this actually becomes but does this class come with werewolf skills? Does that mean there are werewolf skill books? If so, what happens when I combine a werewolf skill book with Hydro skills, aero skills, pyro skills, etc.
Just some food for thought.
