Fire

Fire is a chemical reaction caused by combustion due to extreme heat. It is also a powerful and versatile implement against or with the supernatural.

Uses
Fire is used in many procedures, rituals and spells. The following are the common uses of fire in the supernatural world.

Against Ghosts
Fire, in conjunction with salt, is a known permanent deterrent for ghosts and similar beings when used on their bodily remains or earthly possessions.

Against Demons
Although normally impervious to conventional fire, demons are vulnerable to fire when their skeletal remains are exposed to it. This was considered to be a myth, until Bobby tried it successfully on a crossroads demon. Much like how a ghost or a vengeful spirit does, the demon burns and permanently ceases to exist.



Against Monsters
Fire is also fatal to many creatures such as wendigos, changelings and rugarus. In most cases, fire is also the only weapon that will work against such creatures. Thus, many hunters weaponize fire by using flare guns, flamethrowers and blowtorches.

Holy Fire
Fire ould be also used with holy oil to create holy fire. This isused against beings of angelic origin. It is rather versatile, as it could deter or even fatally harm angels, and it could temporarily banish powerful archangels. Used in forming rings of holy oil, it could prevent angels from escaping. However, they could still access their powers and break free if they are resourceful and creative enough to create a gap within the flames.



Holy flames could be used to create a molotov cocktail as an offensive weapon. Although primarily used against angels, holy fire could still hurt demons.

Rituals


Fire is also used by psychics in different rituals such as seances or by witches in performing their spells. Many summoning rituals require not just a candle, but a lit matchstick thrown into a bowl of mixed magical ingredients as the final step. This is seen on rituals summoning demons like Azazel, or on rituals summoning angels, as seen when Balthazar was summoned by Sam Winchester.

Conjuration
Certain supernatural beings are also able to magically conjure and command fire, regardless of their alignment. Azazel of hell, Kali of the pagan deities, the phoenix of monsters and Michael of heaven are prime examples. This ability is called pyrokinesis.