One fateful day, Equestria is flooded by otherworldly visitors, some good, but most evil. One of these visitors possesses the greatest weapon ever seen by Equestrian, or human, kind. It is the mightiest of machines, and in this visitor's hands it can either save the world, or destroy it.
A Mazinger Z/MLP:FiM crossover.
Please comment, don't just rate up or down and not say why. Perhaps I could explain things to you, or perhaps I could fix what's bugging you.