Divine Lightning

Hurl a bolt of divine lightning at the enemy. The targeted creature must make a Dexterity saving throw. On a failed save, a creature takes 1d4 lightning and 1d4 radiant or necrotic damage or half as much on a successful one. This lightning is divine in nature and will deal an extra 1d4 radiant or necrotic damage to undead, fiends, and devils. 

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the damage increases by 1d4 lightning and 1d4 radiant damage for each slot level above first.