Lucifer's Esoterism

Lucifer's Esoterism (神右手堕極星の暗黒覚醒 (ルシファー·エソテイズム), Rushifā Esoterizumu; lit. meaning "Dark Awakening of the Fallen Pole Star of God's Right Hand") is considered to be one of the most terrifying forms that the Black Arts has to offer, rooted in the origins of the divine itself; it also doubles as a spell, being derived from both Light Magic and Darkness Magic — two opposing forces that normally don't intermingle unless its done on the Divine Will of the ruler of Empyrean himself. This makes it unique in nature, being one of the few dual-element spells existing outside of Slayer Magic.

According to many of the Angel race, this certain form represents one of the most terrible events in human history that the heavens ever faced — the "Great Divide of Heavenly Revolution" (天大革命の生死界, Tendai Kakumei no Seishikai); it was an event that nearly caused the total annihilation of Empyrean & all those residing within. However, according to other sources, it represented a fight for free will and independence, no longer wanting to be bound by the strict and absolute laws that keep Empyrean in motion. Not only that, it signified the desire to be human, who have the privilege to follow their innate desires without restraint.

Used throughout various times in history, it caused a great deal of destruction — leading to the untimely extinction of various species & the downfall of various civilizations; this caused it to be dubbed as "The Heavenly Downfall Spell" (天瓦解の呪文, Tengakai no Jumon) by many of its witnesses and victims. This caused it to be abhorred by many and its users hunted down & killed as a result. Though the information is preserved due to said users' efforts, it currently unknown how many users currently exist

Origins
This spell was modeled and named after the very being who instigated the great & bloody event, causing over half of the celestial beings in Empyrean to fall in the aftermath, thus turning them into Asuras as a result — Lucifer, who was feared as the mightiest being with the greatest authority in Empyrean — second only to the Supreme One. It's unknown when this spell came about, but its rumored that it was crafted by using the immense power that remained in the fallen angel's corpse after his initial demise by the Supreme One himself. Not only that, it's said that the spell was ironically created by humans; specifically, an ancient cult that venerated fallen angels after learning the "truth" from said beings. It's said that the spell took many years to develop and perfect, using various information on both Light Magic and various forms of the Black Arts.

After hundreds of years have passed that this spell was finally perfected, being able to be utilized for various purposes. It's recorded that this spells was used in many ancient wars between races, having the ability to utterly annihilate all those that dare oppose it and its user. This is similar to another spell of considerable power — both having the ability to cause cataclysms on a grand-scale. However, because of the power it possessed, it caused many of its users to be hunted down and killed by various others — hoping to wipe out the technique from existence. In a desperate attempt to preserve the spell's secrets, the users recorded all information pertaining to it in various books, runes, and other artifacts — casting various spells and curses on them that prevent it from being destroyed. Then, they scattered such items to various parts of the world. This serves as a fail-safe, wanting others who want to learn about the "truth" or cause mayhem in Lucifer's name to discover and continue to circulate it around the world.

It's known that there are various users in the current era — Etherious, Humans, Ashuras, Fallen Angels, and those of similar ilk, who have obtained the spell & are able to utilize it effectively. Not only that, they became savvy to the events that happened in times past. Thus, there were some who become newfound followers of one of the first and most infamous of Fallen Angels that creation has ever known — re-instating cults that continually venerated him and all that he did.

Description
"Through this spell, we are able to become closer to the revered ruler of the Fallen Angels. We are able to understand the various agonies he and his kind suffered at the opposing hands of the plane that "supposedly" represents the natural order of creation. Such an immense power can be used to bring about that ruler's will."

- A cultist using the spell for the first time after its genesis.

Trivia

 * Like all powerful spells, this is limited to two per user.
 * This spell came about after the author went to a bible class some time ago.
 * Due to the nature of this spell, it follows the trope Light Is Not Good.
 * The author considers this to be ironically perfect, as some see Lucifer as a corrupting influence while other venerate him as one of the greatest angels in creation.


 * The event related to this spell, "Great Divide of Heavenly Revolution", is derived from the same rebellion that happened in the bible — which caused one-third of the heavenly host to fall in the aftermath.