Sentret

The Sentret card, numbered 107/147, was released as part of the Aquapolis expansion in the Pokémon Trading Card Game, which debuted in North America in early 2003. This set is particularly noted by collectors for introducing the 'e-Card' mechanic, a design choice intended to integrate the physical cards with the Nintendo GameCube's Game Boy Player, allowing players to scan cards to unlock content. The set's aesthetic was defined by a transition toward more experimental, varied artistic styles that diverged from the earlier, more uniform illustrations of the Wizards of the Coast era.

The illustration for this specific card was rendered by Aya Kusube, whose work during the e-Card era focused on placing Pokémon in natural, everyday settings. Sentret is depicted in a soft, woodland environment, emphasizing its nocturnal and alert nature. Upon release, the Aquapolis set was received as a complex addition to the game, appreciated by enthusiasts for its unique card borders and the inclusion of Crystal-type Pokémon, though it marked one of the final major sets managed by Wizards of the Coast before the franchise's publishing rights shifted entirely to The Pokémon Company International.