Wait, are Type: Null and Cosmog always gonna be available in future games? If they're not and you evolved them in SM you're screwed, since they can't breed. You'd have to have Type: Null, Silvally, Cosmog, Cosmoem, Solgaleo and Lunala and then transfer each one of them in every future game until they're available again, or else you won't be able to complete the dex. I don't get it, did Gamefreak even think this one through at all?