From the introduction: Marvelous Heroes: Ultimate Edition is a digital supplement created for use with the Dungeons & Dragons 5th edition ruleset. It contains a collection of comic-book themed heroic archetypes, inspired by various cape crusaders throughout the golden age of comics and beyond. Each archetype has been inspired by a particular super-heroine or hero, ranging from the easily recognizable to the exceptionally obscure, providing a mountain of content and asymmetric play-styles you can explore in your home games.