Deadwynd's Dark Bomb

As you point your outstretched finger, an intense darkness erupts from the center in a hemisphere, expanding outward until finally dissipating. Each creature within a 10ft radius must make a Constitution saving throw. A creature takes 2d12 Necrotic damage on a failed save or half as much on a successful one. Undead and constructs are immune to this damage. Undead within the area must make a Wisdom saving throw, or suffer a disadvantage on their next attack roll.

At Higher Levels: When you cast this spell using a slot of 2nd level or higher, the damage increases by 1d12 for each slot above 2nd