Booming arc

You play your instrument to make a deep, booming sound, creating an arc of energy.

Booming blade creates an arc of energy that deals 1d4 slashing damage, and 1d4 cold, fire, lightning, thunder, psychic, or force damage. To find the damage type that the attack uses, roll a 1d6. 

If rolled a one, do cold damage. If two, do fire damage. If three, lightning damage. If four, thunder damage. If five, psychic damage. If six, do Force damage.