Pokémon Kalos with Energy (XY Arc)

This is the first of a trilogy of books(?) about Ash, Serena, Clemont, and Bonnie, as well as a new member. Who is he? What can he do? What is his past? Am I going to stop asking rhetorical questions? The world may never know. Well, the first two will be answered fairly quickly. The third will not be answered until n...