No it can be found fairly easily at Mt Pyre.
Use Your Pokéradar (obtained with national dex) in route 224 Duskull is rare
You can find them in solaceon town(though they are rare).
It is very rare but you can catch it at mount Pyre.
Duskull is a Sinnoh pokemon as in pokemon platinum you get darkrai which is the evolution of duskull.
They help you catch rare Pokemon such as duskull and riolu. For example: I caught my duskull using peak objects in the swamp area.
Duskull a Ghost type pokemon.
Duskull is uncommon, not rare but its better to catch it if you don't have one
You can find Duskull on Route 224. :)
You can find a Duskull in the Safari Zone.
You can find Duskull in Sapphire at the Mt.Pyre Summit. There are mostly Shuppets, but there are some Duskulls.
Yes you can get gastly I dont no about duskull
its in Springleaf Field. Go talk to Duskull.