Not a Ninja. (Possibly a spy.)

Artist Training Grounds:
Artist's Training Grounds Alumni Group - Week 107 - A spy/secret agent pony!

's OC Dusky Down has been accused of being a ninja on many occasions, and I think it's totally not true. It's just that stylish black reconnaissance outfits for the spy on the go often have a similar style to ninja uniforms, so I can understand how you'd make that mistake.

My Little Pony: Friendship is Magic (C) Hasbro and