Use a spooky plate.
Whatever you teach it! :D
There is a move deleter who can make pokemon forget HM moves.
well u should only if it has the moves that u want it to know because it doesn't learn moves as a mismagius
When the ability Pressure is in use, the Pokemon using it makes the enemy Pokemon use more PP when it uses its moves.
well you can find blizzard in the department store and loads of different strong moves hope this helps
Use dark, ghost, or bug moves.
There is an item called the charcol in soul silver and heart gold, though i am not sure about the other versions, though you may be able to get it in them. hope this helped! Dizzywizz
Sprout Tower.
in caves and dark places
mewto
there is no ghost tower but in kanto theres a indoor cemetery in a town .............. I forgot the name
Ghost Pokemon.
goldenrod and celadon department store.
Whatever you teach it! :D
hydro pump, hydro cannon and two defensive moves.
There's a move deleter in blackthorn city he can remove hm moves.
It is Morty. A ghost type Pokemon user.