The Joker Devil

Shortly after the party ventured Westwards into the Bleakmoor Marshes of Cher from Erendel, they encountered a devil with large horns and bat-like wings. This fiend did not attack the party outright, and instead decided to tell them jokes. These jokes were so awful that they actually caused physical pain to the party, which prompted them to attack the creature and kill it before it could tell any more jokes.