For writing out spells and inscribing on talismans. Typically, Bat’s Blood is for spell work directed toward discord, tension & havoc. 1 fl. oz. each. The ink you use while casting your spell or ritual can be very important in the results you achieve. You may add your own herb or perfume to enhance its power in your ritual. There is no blood in this product. (Anna Riva’s 1 oz.)