Battle Ballad

You call forth an intense musical ballad to protect your allies and strike down your enemies. Your song causes those who hear it to recall great battles passed, and remember their victories and follies, out to a distance of 20 feet, for the duration.

When an ally enters the area for the first time on a turn or starts its turn there, it gains 2d6 temporary hit points. When an enemy enters the area for the first time on a turn or starts its turn there, it must make a Charisma saving throw. On a failed save, the creature takes 3d6 psychic damage. On a successful save, the creature takes half as much damage.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the temporary hit points and damage increases by 1d6 for each slot level above 3rd.