Wrath of God

You create a radiant white sphere around your body to eradicate your enemies. You may choose targets in 30ft sphere of your body, creatures hit must make a Constitution saving throw. The targets take 4d8 radiant damage on a failed save, or half as much damage on a successful one. If you hit an undead creature, it makes the saving throw with disadvantage.

If you target a nonmagical dead that isn't a creature, such as a corpse, it doesn't make a saving throw; it simply burns into ash.

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.