Dad Joke

You say a dad joke. Whether it's a pun, a supposed-to-be-funny outdated reference, or just a bad joke, each creature within 30 feet of you that can hear you must make a Wisdom saving throw or take 3d10 psychic damage, and be stunned until the end of their next turn. 

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, the damage increases by 1d10 for every slot level above 2nd.