Sableye

Sableye is a Ghost/Dark type Pokémon appearing in Pokémon Sapphire and Pokémon Emerald. It is not available in the wild in Pokémon Ruby being replaced by Mawile. Along with Spiritomb, Sableye has no weakness.

Personality
Sableye appears to be an Imp-like creature living in caves. It has no weakness due to its Ghost/Dark type. It appears to have an obsession with shiny things like jewelry and gold. It is also known to be good at thieving stuff.