My Little Pony XLVIII: I say Ol' Chap, how about those Equestrians?

[Kurgan]

Hey there! One of my friends challenged me to find a pony version of a Fiend of slaanesh on the internet, but I'm having no luck so far. Can anypony out there help me out?

Well, no idea what a fiend of slaanesh is, but a quick google search found this:

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If that isn't Twilight Sparkle in demon centaur mode, I don't know what it is.