Costume List: SerenaCasual: Serena's second outfit she changed into when travelling with Ash through X & Y.Swimsuit: Featured in "Peace Smile!", the second ending theme to Pokemon X & Y.Pajamas: Her sleepwear featured in episode 801 & 806.Bathing: Serena wore this green bikini during the Diancie movie.Journeys: Serena's new default look was showed off when she reunited with Ash during the Journey's arc.X & Y: Serena's basic look at the start of her debut. Also resembles her game counterpart.Showcase: Serena wore this dress for most of her showcase contests thoughout the series.Ball Gown: Serena wore this dress in episode 904.Dream Dream 1: This outfit was featured in 3rd X & Y ending titled Dream Dream.Dream Dream 2: This outfit was featured in 3rd X & Y ending titled Dream Dream.Movie 1-4: These 4 outfits were featured in the Diancie movie.Ash's Clothes: Serena wore Ash's clothes in episode 914 when Ash was to sick to battle, so she posed as him and battled in his place.Fennekin Cosplay: When filming her PokeVision Video in episode 820, she cosplayed as a Fennekin.PM Valentine: An outfit featured in the mobile game Pokemon Masters EX.Red Flower Florges: Serena wore this for a fashion show in episode 872.Red Flower Florges ALT: She later modefied her Red Flower Florges costume for one of her showcases in episode 879.Marching Band: Serena was featured in this outfit on the cover of the limited editon Dream Dream OST for Pokemon.Breeder: She wore this for a theme contest during episode 908.Journey's Contest: The final contest outfit Serena is seen in before the series ends with Ash being the protagonist. Featured in episodes 1,190, 1,217 & 1,220.