Mythomagic is a collectible card and figurine game formerly played by Nico di Angelo and some Roman Legionnaires, including Frank Zhang. It involved trading cards and miniature figurines, and is focused on Greek mythology. The rules appear to be very complicated, with similarity in rules to the rules of real-life card games like Magic, The Gathering, and tabletop role-playing games such as Dungeons & Dragons. When Nico met a mythological creature, he would often say something about their abilities within the game or whether or not he had that particular figurine.