Remember that one episode (I can't remember the name) where Big Mac thought he was breaking up with his marefriend and Discord tried to cheer him up with Ogres and Oubliettes by summoning that skeleton mare?

Yeah, that's the one.

Why aren't there more fics with this character? She has so much potential and currently I have only found one fic of her... And it's clop.

6832742
...Do skeleton ponies have bones in the ears? Do the legs even need three bones? why is the only part of the spine visible the tail? How is the neck bone connected? I have so many questions about skeleton pony anatomy.

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In fairness, Skelllinore is not a real skeleton-pony, but a drawing of one come to life. Anatomical logic is probably optional for her.

6832787
OK, that makes sense :P