Master Class Is in Session! (Japanese: マスタークラス開幕！火花散る乙女の激闘！！ The Master Class Begins! A Maidens' Fierce Fight Where Sparks Fly!!) is the 112th episode of the XY series, and the 911th episode of the Pokémon anime. It first aired in Japan on March 17, 2016 and in the United States on June 25, 2016.
It’s time for the Pokémon Showcase Master Class, and Serena’s friends and rivals have come to compete: Shauna, Miette, and Nini! For the first time, the performers are competing simultaneously in a Freestyle Performance, and the top vote-getter from each group of three moves on.
Jessie (disguised as Jessilee) wins Nini’s group in the first round, and Serena beats Miette! Afterward, both girls are upset, but they congratulate Serena and demand that she win it all for them. Serena, Jessie, and Shauna move on to compete in the semi-finals—and the winner will challenge Aria for the title of Kalos Queen!
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At the end of the preview, Serena quotes the last line of DreamDream instead of saying "Everyone, get Pokémon!" like Ash always does.
When Shauna, Miette, and Nini appear in front of the gates to meet Serena, none of their Pokémon are present in their entrance shots, although a few shots later their Pokémon are suddenly beside them. Braixen, Pancham, and Sylveon briefly disappear when Shauna appears as well despite being on the same side of Serena.
When the Showcase begins, Monsieur Pierre's mouth continues to move after he's finished speaking.
When Concetta, Nini, and Jessie begin performing at the same time, Nini was moved to the left of the stage, Jessie to the center, and Concetta to the right.
At the very end of the episode with the "To Be Continued" screen, Shauna's Flabébé disappears.
In the Brazilian Portuguese dub, "Portuguese" is misspelled as "Portugues" in the credits.
In the dub, Ash reads the title card instead of Serena.