[Comprehensive British and American] Villain part-time superhero

After the former mercenary died, two strange systems were inexplicably tied, one required himself to become a superhero, and the other required himself to become a super villain.When the two parties were arguing endlessly about the arrangement of the ex-mercenary's time, the ex-mercenary said, "Wouldn't it be good to have one day and one night?" Saving the world between the heads and snakes, at night he turns into Batman's backup leader, the clown, who is keen on destroying Batman's life in Gotham City.One day, he fell off his horse.Shock!Gotham's crime prince double-jobs as a New York superhero!stunned!New York superhero night becomes Gotham's prince of crime!So the Avengers and Batman started a question of the ownership of the former mercenary and now the villain part-time hero. "He is a superhero in New York. Even if he commits a crime, he should be detained in the Avengers Building and we will take care of him." Tony, a representative who is responsible for stealing people from the Avengers. "Before he became a superhero, he was the clown of our Gotham, and he should be kept in Arkham Asylum under my care." Batman, a representative of all Gotham clown fans.The mercenary found that the villain and the part-time superhero tentatively asked, "How about one day and one night?" So he lived a happy life in the Avengers Building during the day and in Arkham at night (bu).Content tags: Anglo-American derivative superhero┃ Search keywords: Protagonist: Yi Deryanova (JOKER) ┃ Supporting role: A black knight with pointed ears, superheroes