Twisted Tongue

Choose one creature that you can see within range and choose one language which you have proficiency in. The target must succeed on a Charisma saving throw or be affected by the spell for its duration. Whilst under the spell, the creature is only able to speak in the language that you chose. The creature does not need to be proficient in the language themselves. Any words it speaks are automatically altered. If the creature doesn’t know the language chosen, it must make a Concentration saving throw against your spell save DC each time it tries to cast a spell with a verbal component.