Bloody Burst

 You cause a creature’s blood to erupt outward in a violent spray. The target must make a Constitution saving throw. On a failure, it takes 4d6 necrotic damage, and every other creature within 10 feet of the target must succeed on a Dexterity saving throw or take 2d6 necrotic damage from the blood spray. On a successful save, the target takes half as much damage and the blood spray does not occur. A creature without blood is immune to this spell.

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, both the damage against the main target increase by 2d6 as well as the spray increasing by 1d6 for each spell level above 2nd.