The next gen Gvardiol card is a collectible because it is made of extremely high quality materials, has a vibrant and eye-catching design, and because each card is completely unique. This is due to its advanced printing capabilities, allowing for a variety of detailed textures and specialized finishes. As a result, collectors seek out the rarest and most unique versions of the card to add to their collections. The unique design also gives each card a one-of-a-kind look, ensuring that no two Gvardiol cards are the same and making it an exciting and sought-after item.