Ultimate Adventurer's Handbook
Power Chord
1-level Evocation
Casting Time: 1 action
Range/Area: 30 feet
Components: V, S, M
Materials: a musical instrument worth at least 1 gp
Duration: Instantaneous
As part of casting this spell, you play a chord on the musical instrument used as the material component. The chord rattles your enemies and emboldens your allies. Choose a number of creatures up to your spellcasting ability modifier within range. Chosen creatures gain 1d6 temporary hit points. All other creatures within range must succeed on a Constitution saving throw or take 1d6 thunder damage.
At higher levels: When you cast this spell using a spell slot of 2nd level or higher, the temporary hit points gained and thunder damage dealt by this spell increase by 1d6 for each slot level above 1st.