Arpeggio

A broken chord. A ranged attack that targets all enemies within 60ft, dealing 1d6 magic damage, causing musical notes to pop out from the target that is hit. However, the resonance from the target disperses and decreases in damage dealt, dealing only 1d4 magic damage to enemies further than 30ft. If you cast Arpeggio with a spell slot of the 5th level or higher, enemies become vulnerable to bludgeoning, piercing and slashing attacks unless immune.