Summary
A stranger has arrived from another world. He plans to cause ultimate destruction and chaos not only across Equestria, but other worlds as well. The Mane 6 work together to stop him along with some help from a new ally. Like the stranger, their new ally is also from another world, and not only does he know the stranger quite well, he looks just like him...let's get dangerous!

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Link: http://www.fimfiction.net/story/174.....kings-of-chaos
Made by: SailorCardKnight

This is great idea to use silly, own ego loving Darkwing Duck along his most dangerous nemesis, Negaduck in crossover. :)

Sadly story is unfinished.

Darkwing Duck © Disney
MLP: FiM © Hasbro
Story © SailorCardKnight