Death Armor

You are surrounded by a crackling black aura that flares each time you are attacked. Any creature that hits you with a natural weapon or a handheld weapon must make a Constitution saving throw, taking 4d6 necrotic damage on a failed save or half as much damage on a successful one. Creatures attacking you with ranged weapons or reach weapons are not subject to this effect,but creatures making natural attacks with reach are.

At Higher Levels. When you cast this spell using aspell slot of 3rd level or higher, the damage increase by 1d6 for each slot level above 2nd.