>>26471464Other Dark-Type Pokémon have had descriptions that make it seem like it would have a second typing or other non-Dark-Type Pokémon seeming to not have a Dark typing when they should. Umbreon, for example, has poisonous pores all over it's body and even attacks those who threatens it with said poison and its not a poison type. The first thing when most people think of oil, is that its flammable, so that means that Litten's second typing in its final evo could very well be Ground, Dark, Poison, or Rock, but we wont know until we know.
