SilverMorty, we can give you something for the Elite 4 even if we've given you something for the normal game, right? If you want another from me:
Vulpix (holds Rawst Berries). If it's possible, get Vulpix from the Dream World. If not, you must catch Vulpix at the Abundant Shrine in a Timer Ball. Either way, to evolve into Ninetails, it must solo 3 Water-types, 3 Ground-types, and 3 Rock-types (dual types only count toward one of your goals, so if you fight, say, Palpitoad, you must choose to count it as either a Water or a Ground, but not both. The next Palpitoad would automatically count for the same type you chose for the first).