I liked the idea of having different librams for different encounters based on what spell you would use or the encounter. But to have that perfectly and not be stuck with the same libram the entire time would be a huge balancing act which would require too much time and effort better spent on fixing something else. Putting stats on the librams makes balancing all the classes easier. I liked the original but their was too much potential for us to have either OP or worthless librams, so we would be stuck with the same one for the whole expansion.