Yamask

Yamask, the Ghost-type Pokémon introduced in Generation V, is known as the Spirit Pokémon. It is said that each Yamask carries a mask that was once its face when it was a human, and it retains memories of its former life. These Pokémon are often found in ancient ruins or graveyards, drawn to places where spirits linger. Yamask are typically solitary creatures, often seen gazing at their masks and sometimes even weeping, as if remembering their past. Their diet is not clearly defined, but as Ghost-type Pokémon, they are believed to subsist on spiritual energy. In the games, Yamask evolves into Cofagrigus when it reaches level 34. Its unique origin story and melancholic demeanor have made it a memorable Pokémon, often appearing in episodes of the anime or in spin-off games focusing on ancient mysteries or haunted locations. Its Ghost typing gives it advantages against Psychic and Ghost types, while being vulnerable to Dark and Ghost attacks.