As an action, you violently purge the blood from a creature’s body through its skin. Choose a creature that you can touch or see within 18 meters. The target must make a Fortitude saving throw. A creature isn’t affected by this spell if it doesn’t have blood in its body.
On a failed save, the target takes 6d6 necrotic damage.
On a successful save, the target takes half as much damage.
You can increase the damage by 8d6 for each additional mana or psi expended.