Master Class Choices! (Japanese: マスタークラスへの試練！どうするセレナ！？The Master Class Trial! What Will You Do, Serena!?) is the 109th episode of the XY series, and the 908th episode of the Pokémon anime. It first aired in Japan on February 25, 2016 and in the United States on June 4, 2016.
Our heroes are in Fleurrh City for Serena’s next Pokémon Showcase, where she’s hoping to win her third Princess Key and qualify for the Master Class. She’s going up against a hometown favorite named Amelia, who puts on an excellent show. Serena and her Pokémon are more concerned with having fun than being perfect—and in the end, she wins!
Serena accidentally overhears Amelia complaining to Showcase judge Palermo about her loss. Afterward, Palermo tells Serena that she doesn’t yet have what it takes to be Kalos Queen. Serena ponders that as our heroes head for the next Pokémon Showcase in Gloire City, where she’ll compete in the Master Class!
Ash and his friends arrive in Fleurrh City where Serena must win her next Showcase to have three Princess Keys. While walking along the sidewalk, they see a crowd gathering to cheer on a girl named Amelia, as the heroes pass through Fleurrh City. Later, as they eat dinner, a worried Serena eats little of her food.
The next day, Serena is seen talking to Ash, Clemont, and Bonnie. She tells them that she is ready to perform. Bunnelby and Chespin wish good luck to Sylveon which she thanks them for. Next, Serena enters the dressing room. Amelia arrogantly moves in front of Serena and says that she must go first. The scene flips to Palermo who arrives to the Showcase in her limousine. The man who escorts her asks if she can mentor Amelia, explaining that Amelia belongs to a very respected family in Fleurrh City. Palermo tells him that she will judge with her own eyes.
Ash, Pikachu, Clemont, Bunnelby, Chespin, and Bonnie are in the audience for the event. Monsieur Pierre hosts the performance. He has his Klefki show the Princess Key to the audience. Monsieur Pierre explains to the audience that to win the first stage, the Performer must attract the most Rhyhorn. Serena is in the first round. Her competitors are Concetta who uses her Scraggy and Kazalie with her Lilligant. The Rhyhorn are immediately attracted to Serena. Serena is cuddled around by Rhyhorn and some even start licking her. Kazalie has her Lilligant use Sweet Scent which attracts some Rhyhorn towards her. Serena sees a lone Rhyhorn outside of the herd. She runs towards to the lone Rhyhorn. She pets it on its head and she rides it back to where the rest of the Rhyhorn are. After the timer is finished, Monsieur Pierre declares Serena the winner.
After a few more rounds, Monsieur Pierre starts the last round of the first stage. When Monsieur Pierre announces Amelia's name, the crowd cheers. She has her ShinyDragonair and Espeon use Attract on the Rhyhorn who follow her Pokémon. She is declared the winner.
Monsieur Pierre announce that next round will be the Freestyle Performance. Serena is seen with her Pokémon. Her Sylveon is quite nervous for the performance but Serena feeds Sylveon, Pancham, and BraixenPoké Puffs. Her Sylveon is relieved of her nervousness.
Amelia goes first in the final stage of the Showcase. She starts by having her Espeon and Dragonair jump in the air. Then Espeon uses Psychic and Dragonair uses Dragon Dance. Dragonair dances in circles around sparkly purple glimmers of light. She then commands Espeon and Dragonair to use Attract. Hearts are sent towards the audience, alluring the spectators. Espeon uses Rain Dance and Amelia walks on Dragonair's tail. She jump off and commands Dragonair to use Ice Beam which freezes the rain. Espeon uses Hyper Voice which spreads the snowflakes towards the crowd. Amelia is now finished with her performance.
Serena is the next to perform. She starts out by having her Braixen use Flamethrower while Serena, Pancham, and Sylveon dance around a circle of fire. Sylveon uses Fairy Wind which spreads the circling fire into a dazzling display in the sky. Pancham jumps high off of Sylveon's bows. Pancham punches the ground and uses Stone Edge which collides with the fire and makes a shower of sparkles. Serena and her Pokémon dance around the bright rays off the light falling to the ground. Palermo is shown to be slightly impressed by Serena's performance. Next, Pancham uses Stone Edge, which Braixen and Sylveon jump on. Braixen uses Fire Blast which, when hit by Sylveon's Swift, creates a row of sparkles for the audience. Serena is now finished with her performance.
After the show is finished, Monsieur Pierre asks the audience to vote for the winner by using their Glow Casters. After the results are in, Monsieur Pierre announces Serena as the winner. Serena receives her third Princess Key, qualifying her for the Master Class. The scene returns to where the heroes were staying, and Serena is seen talking to Shauna via video call. Bonnie calls her over. Clemont has prepared a feast for them, which the group and their Pokémon enjoy.
Once the feast is over, Serena prepares to brush her Pokémon when she realizes she forgot her brush at the Showcase theater. When she picks it up, she sees Amelia begging Palermo to train her. Palermo tells her that she lost and should be doing something more productive. After Amelia leaves, Palermo calls Serena over. Palermo asks if Serena was satisfied with her performance. She tells Palermo that she thought it was fun. Palermo tells her that there is something she definitely lacks and if she does not find out what it is, she will not be able to defeat Aria. That night, Serena ponders what it might be.
The next morning, the heroes find out that the Pokémon Showcase Master Class will be held in Gloire City. Serena and her friends are shown running towards Gloire City.