idea for a my little pony friendship is magic crossover story

the storyline

the guardians of harmony have to now defend their worlds and equestria from their old enemies known as the secret society of evil and the villains of equestria has they defend their worlds and equestria from these villains with the help of their old friends the mane 9 (twilight sparkle and applejack and fluttershy and pinkie pie and rarity and rainbow dash and starlight glimmer and sunset shimmer and trixie lulumoon) and their purple dragon friend spike the dragon and discord the dragunus and ember the dragoness and thorax the changeling and sunburst the unicorn and twilight sparkle's brother and sister in law shining armor and princess cadance and twilight sparkle's twin sister sci twi and their students the young six (sandbar the earth pony and yona the yak and smolder the dragoness and ocellus the changeling and gallus the griffin and silverstream the hippogriff) and their mentors princess celestia and princess luna and the pillars of old equestria (star swirl the bearded and flash magnus and mage meadowbrook and mistmane and rockhoof and somnambula and stygian) and the cutie mark crusaders (sweetie belle and applebloom and shootaloo) and gilda the griffin and snips and snails and fizzlepop berrytwist and grubber and garble the dragon