Rebuking Refrain

1st-level Evocation
Casting Time: 1 reaction, when damage causes you to lose concentration
Range: 60 feet
Components: V
Duration: Instantaneous
When you lose concentration on a spell, you may turn the last vestiges of that magic into a horrific, discording refrain. The creature that caused you to lose concentration must make a Constitution saving throw. On a failed save, they take 2d10 thunder damage, or half as much on a successful one.
Spell Lists. Bard