Blood

Blood is a liquified substance in some organisms, like humans, that carries oxygen throughout the body. According to the Book of Shadows, warlocks do not bleed when wounded, implying they do not have blood in their bodies. The substance is drunk by vampires, who require it in order to survive, and it is also used in several spells and potions, either for blessing or as an actual ingredient. The warlock Nicholas possessed the power to boil blood and kill his victims from the inside.

Spells and Potions

 * To Call a Lost Witch: Blood is the final ingredient in this ritual, and is spilled into a cauldron with rosemary and yarrow root before the witch chants the last two lines; blood to blood, I summon thee, blood to blood, return to me.

Gypsy Blood
For its individual article, go to gypsy blood. The blood of a gypsy is used as an ingredient in several potions, including the vanquishing potion used by Pilar, Phoenix and Patra on the Slave King and the To Separate a Witch from Her Powers potion.