Jumping on the Pokemon Bandwagon! But this time... JOHTO.

[BloodyMage]

Originally Posted by BardTheFifthLightWarrior

Ghost, definitely. It will be even more useful to, seeing as how Johto actually has a normal type gym.

Only if we teach it a non-ghost move that actually deals damage, since ghost moves don't affect normal pokemon either. If memory serves, most of Whitney's pokemon are also equipped with rollout, which is a rock move and will hit Gastly anyway.

You should definitely wait until the night to get a gastly if you don't mind waiting since there's no harm in having a ghost pokemon.