Anyways, will Slyveon be in SPEE? Since it is a Eeveeloution.
It's ok if it's not, I don't use it anyway.
There was no plans to add Sylveon, instead we are getting Eeveeon. Adding Sylveon would require adding in a new type and not fit in with the story of the game, DarkDoom is already kinda pushing it with the Gen IV mons.