https://www.dndunleashed.com/home/new-spells-minor-blood-magic-ii
Carnage Blast
2-level Necromancy
Casting Time: 1 action
Range/Area: 60 ft
Components: V, S
Duration: Instantaneous
Attack/Save: Constitution Save
Damage/Effect: Necrotic
Choose one creature that vou can see within range which has blood. That creature must make a Constitution saving throw. On a failed saving throw, the target takes 3d10 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 foes with gore and spikes 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 3d10 necrotic damage.