You’re a Pokémon trainer in Galar (with any Pokémon you want) and you worked with Sonia, Hop, and Professor Magnolia and you also worked with some of the Gym Leaders (Milo, Nessa, Kabu, Bea, Allister, Opal, Gordie, Melony, Piers, and Raihan but you also knew Bede and Marnie) so you could learn more about dynamaxing and gigantamaxing. One day Pokémon started dynamaxing/gigantamaxing and started rampaging all over Galar and you went around Galar to calm down the Pokémon but you didn’t know that a boy named Ash and Leon was also trying to calm down some Pokémon in Galar. Leon knew you were helping out with the random dynamaxing in Galar since Leon knew you since Hop works with you. Meanwhile Goh was learning about the dynamaxing phenomenon with Sonia until they got to Stow-On-Side and Goh has a dynamaxing battle with a macro cosmos agent who’s borrowing Oleanas Garbodor and Gohs Raboot accidentally breaks the mural and reveals that the two heroes were humans and Pokémon and find out the darkest day will come again and try to find Zacian and Zamazenta but little do they know that you have one of them (or both). Later Ash and Leon meet up with you to meet up with chairman Rose and Rose released Eternatus and Ash battle’s Chairman Rose while Leon deals with Eternatus and Leon finds out that Eternatus needs to be caught. Meanwhile Sonia tries to get Goh into Hammerlocke Stadium with the help of Raihan, Hammerlockes gym leader since Goh has the rusted sword and shield. Soon Eternatus Eternamaxes and Goh, Sonia, Raihan and Ash arrive to where you and Leon are at and when Ash and Goh try to use the rusted sword and shield one works and the other fails.

Ash: why isn’t the Rusted Sword/Shield working? Goh: No idea Leon: Trying to catch Eternatus Raihan: brings out Duraludon to help beat Eternatus Sonia: worried