6. Yamask
Over a decade after its debut in Black and White, Yamask is still one of the ghost Pokémon that keeps me up at night. While the rest of the spookiest Pokémon here are born of tragedy befalling the Pocket Monsters themselves, Yamask wasn’t always a Pokémon. It was once human.
Yamask is a body horror moment trapped in a Poke Ball. These mask-carrying ghosts are the remains of humans who still retain memories of their past lives, and can possess a human body once more if someone wears its mask. If it evolves into Cofagrigus, it completes its transformation into a Pokémon by forgetting its old memories. This shit got me fucked up, Game Freak.
