Void Devil Slayer Magic

Night Devil Slayer Magic, also known as Abyss Devil Slayer Magic is a Caster Magic, Lost Magic, and Devil Slayer Magic that gives the user the physical characteristics of a demon of the night or otherwise known as a demon of the abyss.

Description
Night Devil Slayer Magic is a magic that Erebus learned from the Book of Zeref and it allows the user to use the element of darkness that has an incredible amount of Magic Barrier Particles. The user can produce and use darkness in a lot of different ways, allowing the user the ability to use darkness for any purpose and at any distance, including molding darkness into various constructs. The user is even able to influence darkness, allowing the user to use darkness for anything from creating explosions to simply using it to strike opponents with unimaginable force. Also, this darkness as been given the alias "All Consuming Darkness" because of its ability to consume ethernano, magic power, and almost any form of light with ease. These qualities make this magic very powerful, which is further shown by Erebus, the most famous user of this magic. His mastery over this magic is so great that a subconscious thought about wishing it was dark can bring about total darkness on a very large scale. Also, using this magic means that user's have absolute immunity to darkness. Among other things, this means the user is able to see perfectly fine without any light, perhaps even better. Not only are the users of this magic immune to darkness, they are empowered by it. Simply being in a dark place great enhances their physical and magical abilities. Like all darkness variants of Slayer Magic, Night Devil Slayer Magic gives the user the ability to consume darkness to restore their energy and to restore thief bodies to a healthier state as long as it isn't their own darkness. The name Abyss Devil Slayer Magic is a reference to two things. The first is the the fact that this magic is superior to all other forms of darkness, regardless of its origins. This is possibly attributed to the fact that the darkness is rich with Magical Barrier Particles, even more so than other types of Devil Slayer Magic. The second reason it is called Abyss Devil Slayer Magic is because it is widely believed to be the very first type of Devil Slayer Magic ever created. While not proven, it would explain the excessive amounts of Magic Barrier Particles, as if it was some sort of beta form of Devil Slayer Magic. Being able to manipulate darkness gives the user the ability the instinctual and psychic ability to manipulate and produce darkness, shadows, and dark energy with their minds. Exorcists who use this magic can even manipulate darkness from other users, even other exorcists that use a darkness variant of Devil Slayer Magic. Lastly, Abyss Devil Slayer has not one, but two weakness. This seems to further prove that it is like a beta form of Devil Slayer Magic. The first weakness is the same as the weakness of any other Devil Slayer Magic. The black markings that are required to learn this magic, very slowly spread across the user's body, causing the user to very slowly transform into a demonic being. The second weakness is equivalent to a Dragon Slayer's motion sicknesses. However, instead of having motion sickness, users of this magic are extremely claustrophobic. Merely being in a confined place is enough to scare users to the point that they are almost paralyzed. There is no known cure for this, but there is a way to increase the tolerance to confined places so that the user is just very afraid instead of paralyzed with fear. This was recently proven by the most recent user: Erebus.