Divine Glow

Your scroll emits a divine glow from a point of your choosing within range.
Each creature within a 10-foot-radius sphere centered on that point must make a Dexterity saving throw.
On a failed save it takes 2d8 radiant damage.
On a successful save it takes half damage. 
Until the end of the caster's next turn, all allies in the burst gain advantage on any attack roll.

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, the damage increases by 1d8 for each slot level above 2nd.