Carnage Blast

Choose one creature that you can see within range that has blood. That creature must make a Constitution saving throw. On a failed save, the target takes 3d10 necrotic damage. On a successful save, the target takes half as much damage. 

If this damage reduces the target to 0 hit points, its blood bursts from within its body, spraying nearby foes with gore and spikes of enchanted blood. Each creature within 15ft of the corpse must make a Dexterity saving throw. On a failed save, the creature takes 1d10 necrotic damage. On a successful save, the target takes half as much damage. 

At Higher Levels: When you cast this spell using a spell slot of 3rd level or higher, the damage increases by 1d10 for each slot above the second.