Flatman appears in Magic: The Gathering's Magic Marvel Super Heroes Commander set as an Unknown rarity card (#721), offering a niche collectible for crossover enthusiasts. The description and mechanics reflect the set's comic-inspired theme while fitting Commander playstyles. At a current market value of $0.90, it sits at the lower end of secondary-market pricing, useful for completers or casual deck builders. Collectors track condition and print run when assessing long-term value.