Crown of Light

Blazing light coalesces over your ally to form a crown of radiance that sears surrounding foes. Choose an ally you can see within range. That ally gains temporary hit points equal to your proficiency bonus + your spellcasting ability modifier and is considered proficient with all saving throws until the end of its next turn. Also, every hostile creature within 5 feet of the ally must make a Dexterity saving throw. The creature takes 4d6 radiant damage on a failed save, or half as much damage on a successful one.

At Higher Levels. When you cast this spell using a spell slot of 5th level or higher, the radiant damage increases by 1d6 for each slot level above 4th.