Galvantula, a Rare Reverse Holofoil card from the Steam Siege set (#42), features the Electric/Bug-type Pokémon known for its speed and agility. Currently valued at $1.37, it appeals to collectors due to its unique holofoil design and popularity within the Pokémon trading card game. As part of a set that emphasizes dual-type Pokémon, Galvantula holds a niche position in the market, particularly for players and collectors focusing on competitive strategies.