An early CoroCoro leak has revealed Mega Metagross, which will of course be used by Steven Stone. Steven will be using a Mega Brooch to Mega Evolve it. Its information has been revealed in a second scan below, but it’s far too blurry to read. You can see Mega Metagross’ Ken Sugimori art as well as the new artwork for the Gym Leaders. There may be more pages in the magazine featuring Pokemon – we’ll find out soon!