Arthemis was considered to be one of the most dangerous villains alive, having been responsible for countless murders and robberies. He was known for his cold, calculating nature, and his ability to kill without remorse. His appearance was equally as haunting as his abilities, as he often wore a terrifying mask that was covered in bloodstains and scars. His sharp eyes were always hidden behind the mask, making it impossible to tell what he was thinking at any given time.