Demoralizing Tune

You play a song to demoralize your enemies, taunting them with your lyrics. When an enemy creature in range would make an attack roll, damage roll, or saving throw, you may use your reaction to roll a d8 and subtract the results from their roll. This die becomes a d10 at 10th level, and a d12 at 15th level.

Additionally, while this spell is active, you may use your bonus action to insult a creature in range. That creature must make a Wisdom save or take 3d4 psychic damage.