Duskull

Duskull is a rare Ghost-type Pokémon from Hoenn region. It evolves into Dusclops when fed with 50 candies. Duskull is also one of the first five Pokémon originally known from the Hoenn region that were made available to catch in the game.

Pokédex description
Requiem Pokémon

''Duskull can pass through any wall no matter how thick it may be. Once this Pokémon chooses a target, it will doggedly pursue the intended victim until the break of dawn.''

Evolution family
Duskull is part of a two-member family.

Trvia

 * Duskull was one of the first five Hoenn-region Pokémon released during the Halloween 2017 event.