DISCOMBOBULATE

You say a word in a language that is long forgotten. Your hands are filled with a mystical power that only monks can fathom. You slap your hands on both sides of your opponents head,  dealing 2d12 force damage directly to them. They must succeed on a constitution saving throw against your spell dc or become stunned until the end of their next turn. Additionally, any creature that is within a 10 foot sphere of you when the spell is cast takes 2d6 force damage and must succeed on a constitution saving throw or be deafened for a number of minutes equal to your spell casting modifier. If you take your next action casting this spell, you do not use a spell slot.