Sentret, a Common rarity Reverse Holofoil variant card from the Aquapolis set (#107/147), features the Normal-type Pokémon known for its keen senses and ability to stand on its tail. Currently valued at $29.95, this card appeals to collectors due to its unique holofoil treatment and status within the early 2000s expansion. Its market presence reflects interest in both nostalgia and the competitive potential of the Pokémon it represents.