The Entei Pokemon card is a highly sought-after collectible for a few reasons. First, Entei is a Legendary Fire-type Pokemon, so it's rare and highly sought-after. Additionally, its visual design is eye-catching and evocative, making it an appealing item for collectors. Finally, due to its popularity, the card has a strong history behind it, making it a desirable item to own. This combination of rarity, visual appeal and history makes it both a valuable and sought-after collectible.