Thunderstrike

You point at a location within range, and a 1-foot-diameter ball of white lightning streaks towards it. When it hits its mark, lightning flashes around the point and a shockwave of thunder booms outwards and around corners with a deafening crash that can be heard up to a mile away. Each creature within a 20-foot-radius of the point is Deafened until the end of its next turn and must make a Constitution saving throw, taking 6d6 thunder damage on failure or half as much on success. Each creature within a 5-foot-radius of the point must also make an additional Dexterity saving throw, taking 3d10 lightning damage on failure or half as much on a success.

At Higher Levels. When you cast this spell using a spell slot of 6th level or higher, the lightning damage or the thunder damage (your choice) increases by 1d10 or 1d6 respectively for each slot level above 5th.