Awful Joke

You tell an awful, horrible joke that's so bad it causes pain. Any living creature that can hear and understand you in a 30-foot sphere around you must make an intelligence saving throw, if they succeed, they take [roll]1d8[/roll] psychic damage and are unable to take reactions until the end of their next turn while they question their meaning in life. If they fail the saving throw, they didn't catch the joke and nothing happens to them.