Recently announced is that some select Pokemon will have mega evolutions in the upcoming X & Y outing. Abilities, stats, and sometimes even types are different. To activate their mega evolution, they need to be holding a Mega Stone unique to that species. After battle, they revert to their normal state and only one of these Mega Evolution per battle. The Pokemon confirmed for Mega Evolution are Mega Mewtwo, Mega Blziken, Mega Lucario, Mega Mawile, Mega Absol, Mega Ampharos and Mega Kanghaskhan.