The 2025 Metal Universe Batman Dark Matter trading card featuring The Riddler from the Batman universe is a standard-sized card made of card stock with a thickness of 20 Pt. It is an original non-sport trading card produced by Upper Deck, with an insert feature that would make it a sought-after collectible for fans of the superhero genre. While it is not autographed, the card is in near mint or better condition, making it a valuable addition to any collection of Batman memorabilia.