most don't . . .
there really isn't much on him aside from the typical wiki info . . .
Metamopho can is like the absorbing man without the need to touch, he can combine elements to make new ones, he can become misty things, and liquid. Think Absorbing man, T-1000, with Class 100 strength, with some Firestorm added in. And that is what you get. He can make a part of his body one element, while making another part something else. He can make stabbing weapons, turn himself into a flyer by using certain elements. Crystal is outmatched here. She can't do anything to him. He could turn into an adamantium/promethium hybrid and super charge himself with freon gas and literally crumble crystal to pieces while being unable to be destroyed himself.