Carnage Blast

Choose one creature you can see within range which has blood.  That creature must make a Constitution Saving Throw.  On a failed saving throw, the target takes 4d10 necrotic damage.  On a successful saving throw, the target takes half damage.

*If this damage reduces the target to 0 hit points, its blood bursts from within its body, spraying nearby creatures with gore and congealed needles of enchanted blood.  Each creature within 15 feet of the target must make a Dexterity Saving Throw.  On a failed saving throw, a creature takes 4d10 necrotic damage.

At Higher Levels.  When you cast this spell using a spell slot of 4th level or higher, the damage dealt increases by 1d10 for each slot level above 4th.