Ah. I just thought that it was weird for it to be put there and for it not to be used. There are no weapons that raise cosmic piercing or earth piercing anyways. Guess it isn't much of a problem.
Maybe Krin's adding a fourth class in a later version, which will use Cosmic and Earth. (like Psycho's lightning and shadow, Bio's physical and poison, and Hydro's fire and ice (AKA hot and cold Hydros))
Maybe, I was just assuming that it would come in Sonny 3...
Perhaps Krin will though.. It would be kinda cool to see some classes with that... Cosmic would probably be technology oriented and earth would be pure vitality...