Billie Jenkins has returned, but her psychic abilities won’t be enough to stop Pikachu. Pikachu already has a good amount of experience against opponents like that and his thunder abilities will always be a good counter. Once Pikachu goes all out there just isn’t anything someone can do to stop his onslaught. Billie also doesn’t have the durability needed to outlast the attacks so it is curtains for now. Pikachu wins.