Demon (DeathGr)



"Demons, huh? Oh pure child, don't concern yourself with them. They were souls and spirits that fell to evil. Wills of chaos that desire bodies to cause more chaos. May the Gods one day rid this world from their presence."

- A priest explaining what demons are.

Demons (悪魔, Akuma) are a race of beings that can be found in Earth Land. They are evil spirits that can create bodies to interact with the material world and can regenerate them via their magic power or they can alternatively possess a mortal being to interact with the world, in which case they can sire half-demons. . They mostly use Darkness along with Forbidden and Black Magic.

Ways of materialization and sustenance
"Hehehe, yes. Feel more anger human! You will only make me stronger the more you are consumed by it!"

- A demon taunting a human so it can feed.

Demons can materialize in the material world by bathing themselves in huge amounts of negativity and depending on the type, they can become demons of fear, wrath etc. something that gets imprinted on their essence permanently, meaning that a demon that becomes a fear demon will need emotions of fear to strengthen itself or rematerialize should its physical body be destroyed, however, they can also devour souls that couldn't pass since they possess negative emotions that hold them on the living world. In case their body is dismembered or damaged, they can spend magic power to repair it as many times as they can. When there is a mediocre amount of negativity in nature, a demon can combine it with an element to become a fire demon etc., however, demons that materialize this way are fragile existences that should their body be destroyed, their ethereal self will be erased. Demons can also inhabit the dead bodies of animals or magic beasts except dragons, becoming demonic beasts and they can become stronger by devouring other beings and humans. Finally, humans that are tormented by negative emotions are susceptible to their body be possessed by a demon.

Demonic Ascedance
"You have gone and done it now, mortal. Despair now as you gaze upon my true form and be destroyed!"

- A demon's words while preparing to transform.

Demons, while having a body, can force themselves to undergo a transformation by flaring their magic power to its absolute limit and also imbuing their whole essense into the process, with their transformation being demonic in form and if they are defeated while in it, they cease to exist completely. While transformed, their physical attributes and magic power triple, but prolonged use of it weakens the body greatly so most demons use it as a last resort in order to finish a fight quickly. This transformation is  considered the true form of their being.

Weaknesses
"Agghhh! Curse you and your holy magic priest! How dare a mere human like you hurt me?!"

- An injured demon expressing its wrath on a user of holy like magic

Demons can be harmed by anything holy while having a body and their essence can be destroyed by Spirit Slayer Magic or other non-slayer spiritual magics that are strong enough, however, Demon Slayer Magic, and other demons in general, can harm and vanquish them in both forms at once. Also, sites of worship such as churches and temples are places where demons cannot enter either due to divine protection or due to the pure feelings of the faithful lingering there.

Archdemons
"You are looking for an archdemon you say? Hehehehehe, what foolishness! Do you even know what they are boy? They are the strongest of demons! They possess power that rivals or even dwarfs your strongest mages! Some even exist from the times that dragons were ruling the world."

- A demon explaining what an Archdemon is.

Archdemons are the most ancient and powerful demons that ever existed. Most are as powerful as S-class mages while there are few that surpass that level and as the most superior demons, Archdemons display expertise in Black Arts. A demon can become an archdemon by having absorbed 600 souls and attempting a transformation on a night of a full moon, with their transformation becoming now their archdemon forms. Archdemons are resistant to normal amounts of damage coming from holy forces and an amount that would normally be lethal to common demons, an archdemon would only have some injuries from it, but even them cannot remain unscathed when facing Devil Slayer Magic.

Demonification
"Souls that fail to pass away will become wraiths or even worse, demons. So let's pray my children for them to find peace and move on before that happens."

- A priest's usual speech during a liturgy.

There are ways for more demons to be created. The first and most usual is when souls and spirits are consumed by their negativity and commit murders every day for a whole week, with their final kill changing their essense permanently. The second and final one is when half-demons or devil slayers boost their demonic factor via overuse of their magic, with it changing their body until they fully become demons.

Relationship with Etherious
"Etherious? They are nothing more than disgrace, cheap knock offs of the word "Demons". They are simply animated books with sheer negativity as their source of power. Their only place in the world is in our stomachs!"

- The usual opinion of demons about Etherious.

Demons despise Etherious from the bottom of their non existent hearts ever since the latter became a thing. They consider them pale imitations of true demons, a blasphemy of humans towards them and they will kill one immediately on sight. Despite their hate htough, some demons consider them food due to the so called Curse power utilized by Etherious being negativity in a form of energy.

Powers and Abilities
Darkness Magic  (闇の魔法 Yami no Mahō) is the most usual form of magic that demons utilize due to them being ethereal masses of negative emotions so a magic such as this that utilizes said emotions comes natural to them.
 * Immortality: Demons, due to them being ethereal beings, can live forever and once they create a body, that body will never age and if it's destroyed, they simply return to their ethereal form and can create a new one once they bath themselves in negative emotions.However, devil slayer magic can damage both body and soul at once while Spirit Slayers can permanently destroy them when in spiritual form.
 * Immense Physical Condition: Demons, while having a body, possess immense physical attributes when compared to most humans.
 * Demonic Ascendance: Demons can cause a transformation by pouring all their magic power and essense, becoming much stronger, but if they die while in it then they truly die.
 * Instant Regeneration: Demons can heal every possible injury and even restore missing limbs instantly by spending magic power while having a body.When they don't possess the right amount of magic power to spend, they can heal themselves with the right amount and type of negative emotions.

Black Magic  (黒魔術 Kuro Majutsu) is either a Caster or Holder Magic which demons utilize to affect souls or the bodies of humans with various and dangerous effects.

Black Arts (ブラック・アーツBurakku Ātsu): Archdemons, due to their power and experience, are the only ones that display this form of magic and most if not all are as dangerous as the most famed human users.