The Gyarados 123/123 Heartgold & Soulsilver Reverse Holo card is a highly sought-after collectible in the Pokémon TCG community. This card features the powerful character Gyarados in its Shiny variant, making this an exceptional collectible. The Reverse Holo finish adds a unique and eye-catching element to this Pokémon card, making it a must-have for any collector.