Bright

Bright, radiant energy surrounds and harms a creature you can see within range. The target must make a Constitution saving throw. The target takes 8d8 radiant damage on a failed save, or half as much damage on a successful one. This spell has no effect on celestials.

If you target an undead creature, it makes the saving throw with disadvantage, and the spell deals maximum damage to it.

At Higher Levels. When you cast this spell using a spell slot of 5th level or higher, the damage increases by 1d8 for each slot level above 4th.