Unsullied Blood (Greater)

Blood offered from a willing donor was taken directly from the vein and stored in an ornate vial that keeps it as pure and red as the day it was extracted. When this catalyst is added to a Vampiric Feast or Vampiric Maiden spell of up to 6th level, instead of gaining temporary Hit Points based on the damage dealt, you recover half of the damage dealt as Hit Points. If the amount of Hit Points that would be restored by the spell exceeds your Hit Point maximum, you gain the excess as temporary Hit Points.