Terrible Joke

You speak a terrible joked laced with subtle enchantments. The target of this spell must make an Intelligence saving throw. On a failure, they don't get the joke. On a success, they take 1d12 Psychic damage. A creature is immune to this spell if they can't hear you.

You deal an additional 1d12 of Psychic damage at 5th, 11th, and 17th level.