Dusclops

Dusclops (Japanese: ヨマワル Yomawaru) is a -type Pokémon introduced in Generation III.

Evolution
Dusclops is the evolved form of Duskull and evolves into Dusknoir via trade while holding a Reaper Cloth.

In the manga
In the Pokémon Adventures Manga, Emerald owns a Dusclops.