Cluemaster

Cluemaster, real name Arthur Brown, is a Gotham City criminal known for leaving straightforward clues at his crime scenes, distinguishing him from other puzzle-themed villains. Once a failed game show host, he turned to crime and is notably the father of Stephanie Brown, who became the vigilante Spoiler. His criminal activities often bring him into conflict with Batman, and he has been involved with groups like the Injustice League.