The Requiem Pokémon
Duskull is a Ghost-type Pokémon originating in Hoenn (as #148). It is listed in the National Dex as #355. Duskull evolves twice, first by levelling up to 37 to Dusclops and then being traded holding the Reaper Cloth to Dusknoir.
... More later. And that's not an empty promise because I really and truly love Duskull.
I don't own Duskull or anything related to Pokémon; that's all © (copyright) Game Freak & Nintendo, 1995-2007. Requiem and all original content is © Larissa, 2007.