the origins of mega charizard xy
it started when the 2 most powerful charizards aka reds charizard and ash charizard decide to leave there trainers and explore the universe to find strong opponents. as they traveled around the universe they got stronger learning moves from characters from other universes. then one day ashs charizard met reds charizard and decided to battle. they were equal streangth and they both were exhausted when omega shenron appeared and attacked them. omega shenron proved to be too powerful and the charizards were heavily damamged. they thought that its over when ashs charizard suggested the potara earing fusion and reds charizard accepts putting on one of the potara earings on its left ear while ashs charizard put the other potara earing on the right ear and they mega evolved into there forms ashs charizard being the mega x form while reds charizard is the mega y form and they fused to create the most powerful charizard ever, mega charizard xy. they fought omega shenron and they had no problem beating him and they finished omega shenron off with the move hypernova thus saving the universe.