Blood Armor

Blood Magic. When casting blood magic in addition to expending a spellslot to cast the caster also takes a number of 1d6 equal to the level of the spellslot used as bleed damage.

Touch a willing creature, the spell creates armor of blood around the creature's body. If the target's AC was below 15 it becomes 15 and the target is now resistant to either Slashing, Piercing, or Bludgeoning damage.