"In this, it revealed Mega Metagross, which will be used by Steven. Steven Mega Evolves Metagross using the Mega Brooch and the scan references the fact that there are different Pokémon in Hoenn than before."
One of my favorite Pokemon getting a Mega evolution, one of my favorite trainers using him, and as expected, Mega Metragross looks so damn powerful that we’re all just waiting to spam his Bullet Punches and Zen Headbutts! He will probably receive a boost to his already massive Attack stat of 130, and a decent boost to both of his defensive stats. I just hope that his ability only further increases his might and that thing thing ends up being really terrifying to face. Thank you Game Freak, this one is truly awesome.