Duskull wanders lost among the deep darkness of midnight. There is an oft-told admonishment given to misbehaving children that this Pokémon will spirit away bad children who earn scoldings from their mothers.
– Pokemon Sapphire Pokedex
Duskull’s Pokedex entries makes it seem like a creepy and evil Pokemon, I guess it’s ’cause it’s based on the boogeyman or something. It does look rather creepy, wearing a skull as its face.
Stat-wise, it has lots of Defense and Sp Defense, and not much else, not even a lot of HP (only 20 base HP in fact)