Sonic Arrow

3rd-level transmutation

Casting Time: 1 bonus action

Range: Self

Components: V, S

Duration: Concentration, up to 1 minute

The next time you make a ranged weapon attack during the spell’s duration, the weapon’s ammunition, or the weapon itself if it’s a thrown weapon, transforms into a bolt of lightning, and you make the attack at advantage. The target takes 3d8 thunder damage on a hit, or half as much damage on a miss, instead of the weapon’s normal damage.

That creature is deafened for 1 minute, and must make a Constitution saving throw at the end of each of its turns against your spell save DC, ending the deafened condition on itself on a success.

Whether you hit or miss, each creature that is within 5 ft. of the line between you and your target must make a Constitution saving throw.

Each of these creatures takes 1d8 thunder damage on a failed save, or half as much damage on a successful one. If they fail the saving throw, the creature is deafened for 1 minute, and must make a Constitution saving throw at the end of each of its turns against your spell save DC, ending the deafened condition on itself on a success.

The piece of ammunition or weapon then returns to its normal form.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the damage for both effects of the spell increases by 1d8 for each slot level above 3rd.