Blood Magic
Blood magic is strictly illegal in the UK and in many parts of the world; in some areas, it's not strictly forbidden but definitely a grey area. It requires a small amount of the victim's blood.
Uses of Blood Magic
Simulacrum
A simulacrum is a small figurine or likeness of the target, created with alchemy and imbued with blood. They do not have to be in the form of a person-- and are often disguised as common household items. This allows the blood magic user to affect their target from a distance. You can affect their body temperature by throwing it in the flames, or by freezing it. It is difficult to kill people with a simulacrum, but it has happened. Torture is the most common use. If caught with an active simulacrum, you can be sent to Azkaban even if it hasn't been used.
There is healing and palliative care potential with a simulacrum. It is illegal to have one of yourself, unless you have a permit.
Potions
Symptoms of Use
When people are being attacked with blood magic, the following symptoms are common:
- Loss of control of body temperature-- hot flashes and chills.
- Mysterious blisters/frostbitten skin
- Sharp pains
- Mysterious bruises
- Open wounds
- Blood infections; corrosive blood
- Unconsciousness
Safeguards
Amulet
They are made exclusively with silver, copper, or gold and imbued with the user's blood. They grow warm to the touch when someone is attempting to use blood magic against them. They must be touching the user's skin in order to be effective. Runework, metalcharming, and alchemy are required to create an amulet. Amulets take much time to be created-- anywhere from a week to several months, depending on how many hours are put in and the skill of the creator. They must be tailored to the individual. Owning one of these is not illegal, but it is incredibly expensive.
Spells
Spells can be used to enchant a room so that it is a safe, magic-neutral zone. However, these spells wear off quickly and need to be reapplied. They are unreliable and easily dispelled.