pokemon mega evolu

ok heres da deal, humans where whipd out, leaving pokemon to thrive and rebuild using what humans left behind, and yeah, they evolved to talk like us, and they discovered mega evolution, a temporary transformation that grants certain species a powerful new form with boosted stats during battle, but it causes extreame pain and causes them to go a lil crazy if used too often, but yeah, they disovered that they can witstand the pain, and they like built a school to teach younger pokemons how to witstand and use their mega stones sparingly, also the mega evoed mons get special powers depending on their classification, anyways, you can be any pokemon u like that HAS a mega (i made this talkie based on a dream i had one night)