Blackbrow’s Booming Bolt

A single silver crossbow bolt is propelled from the Players hand, releasing the bolt as a thunderous shockwave propelled at the speed of Rolling thunder toward a creature within range.

Make a ranged spell attack against the target. On a hit, the target takes 1d6 thunder damage, and it must make a Constitution saving throw against the casters spell DC. On a failed save the target is stunned until the end of its turn, unable to move or take reactions.

This spell’s damage increases by 1d6 when you reach certain levels: 5th level (2d6), 11th level (3d6), and 17th level (4d6).