Belch

You roil and churn your innards to create a thunderous belch in a 30-ft Cone originating from you. Each creature within the cone must make a Constitution Saving throw, or suffer 6d6 Thunder damage, half as much on a successful save. Additionally, if the creature fails the saving throw it is deafened until the start of your next turn.

At Higher Levels. When cast at a higher level, for each spell slot above 3rd, you gain 1d6 to the damage.