Sangromancy

Blood magic is the study & pactice of arcane arts through the mystical/nonmystical properties of blood. Nonmystical blood is used for the lifeforce energy within, which can amplify the powers/abilities of certain spells & rituals. Mystical blood, such as those from otherwordly beings like celestials, fiends & fey, or from powerful beings like dragons, giants & certain monsters, have special properties used for spells, rituals, & potion making. Draconius (current student of Blood Magic) has learned of the following uses for mystical blood, leaving more to be discovered.

• Dragon blood - can add draconic essence damage to any demons/creatures summoned using the blood. Can also be used as a potion ingredient to produce this same effect
• Fey blood - can add nature-based effects to any creatures summoned using the blood. Can also be used as a potion ingredient for potions or poisons for similar effects 

Blood Mage (DnD 5e homebrew class) are experts at this field of study, incorporating it into their magic as described in their classes.