Saving the world from the threats that plagued it wasn't easy. Especially when the saviors of the world have to keep doing so. And eventually, they lose. Victory can't always happen.
In a desperate attempt to save the world, Twilight Sparkle attempts a spell that will bring forth those that use the magic of the sun, the villains' seemingly only weakness, assuming that it can bring back her mentor.
Instead, she gets the Joestars.
A Jojo's Bizarre Adventure and My Little Pony Crossover Fiction.