Kung-Fu Equestria

A boy steals a pair of Snow Leopard claws at Comic-Con and is transported to Equestria as a infant with no memory of his former self, Luna finds and raises him as her own and teaches him the many arts of Kung-Fu, only for him to betray her when he is denied what was rightfully his. Stopped by Celestia he is sent to Tartarus, a inescapable prison designed to hold the martial artist.

20 years later Luna has trained five of the greatest warriors Equestria has ever seen the Furious 5, each trained in their own style of Kung-Fu. Upon receiving a Frightening Vision Celestia believes that it is time to find and train The Celestial Warrior, During the Selection a Unicorn Girl falls in front of Celestia

Luna having no faith in the girl begins to train her vigorously in hopes she quits so that the real Warrior may be chosen