deathly border

A circle on the floor ripples through the ground powered by how close the user was to death the energy ripples out in a 60-foot-radius circle from a point within range. Each creature in that area must make a Constitution saving throw. A target takes 8d6 necrotic damage on a failed save, or a quarter as much damage on a successful one. it also protects the user from the attack

At Higher Levels. When you cast this spell using a spell slot of 7th level or higher, the damage increases by 2d6 for each slot level above 6th.