The shiny Gyarados card is a collectible because it represents a rare piece of Pokémon history. This card was issued as a promotional card in 1997 as part of a collaboration with Nintendo. It features a gold-shimmering Gyarados, making it one of the most sought-after cards among Pokémon fans. Its rarity and stunning art make this card a treasured asset that has only become more valuable over time. Whether you are a serious collector or just looking to add some flair to your collection, this card is definitely a must-have!