Looks like Rarity has found a new nemesis!  
Auriana, an alien fashion designer from a planet far away, caught wind of Rarity’s boutique and its much-celebrated frocks and dresses. Envious of Rarity and her shop’s popularity, she hatched a plan to visit Equestria, first stopping off in Manehattan, where she came across one Coco Pommel, a budding fashion designer in her own right, and friend/protg of sorts to Rarity. Knowing of their connection, Auriana decided to possess Coco’s body, and use her as a puppet to spy on Rarity and her boutique so that she could steal ideas for her own fashion store back home on her planet.