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. Every hostile creature within 5 feet of that ally must make a Dexterity saving throw. A creature takes 4d6 radiant damage on a failed save, or half as much damage on a successful one.

In addition, the chosen ally gains temporary hit points equal to 5 + your spellcasting ability modifier, and it is considered proficient with all saving throws until the end of its next turn.

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