Haunter, a Reverse Holofoil variant from the Arceus set, holds an Uncommon rarity and is numbered #41 in the collection. Currently valued at $10.98, this card features the Ghost/Poison-type Pokémon known for its haunting abilities in the game. Collectors appreciate its unique artwork and the nostalgic value associated with the franchise, contributing to its steady presence in the market. Grading can significantly impact its value, making well-preserved copies particularly sought after.