Vicious Mouth

You implant a vicious mockery within an object in range, an insult that is uttered when a trigger condition is met. Choose an object that you can see and that isn't being worn or carried by another creature. The insult is made on the spot by the Vicious Mouth and personalizes it for the creatures within range. Finally, determine the circumstance that will trigger the spell to deliver your mockery.

When that circumstance occurs, a magical mouth appears on the object and recites the insult in your voice and at the same volume you spoke. If the object you chose has a mouth or something that looks like a mouth (for example, the mouth of a statue), the magical mouth appears there so that the words appear to come from the object's mouth. After triggering the spell ends. 

Any creature within 30 ft. of the Vicious Mouth must make a Wisdom Saving Throw. On a failed save, they take 4d4 psychic damage and have disadvantage on their next action. On a success they take half the damage and do not suffer disadvantage.

The triggering circumstance can be as general or as detailed as you like, though it must be based on visual or audible conditions that occur within 30 feet of the object. For example, you could instruct the mouth to speak when any creature moves within 30 feet of the object or when a silver bell rings within 30 feet of it.

At third level and then at each level above, the spell deals 2d4 extra damage per level.