Pokémon : S24 | E34 – The Sweet Taste of Battle!

Ash and Goh receive an invitation from Opal to take part in a tournament that she is hosting. Opal informs them that Leon will be in attendance, which excites Ash, who assumes that he may get a chance to battle Leon. At a restaurant, Goh catches a Milcery, which evolves into Alcremie. Ash, Goh, and Chloe arrive at Ballonlea Stadium and meet Raihan, Opal, and Leon. Opal reveals that the tournament is a cake decorating contest. Ash wins the contest and is challenged to an exhibition match against Opal. Poplar sends out her Gigantamaxed Alcremie and uses G-Max Finale on Ash's Pikachu, causing Pikachu to grow fat from the cream. As a result, Opal calls off the battle. (Source: Wikipedia)