Withering Rhavadusk

Withering Rhavadusk (, Wizāingu Rabadasuko; lit. "Physical Negative Emanation: Total Annihilation of the Material World") is the other signature and personally-crafted magic of Phobos Kydoemusca — usable while he's in the physical plane; it's the representation of "physical destruction", as opposed to its counterpart, and the one that's commonly seen amongst the two in the presence of his other Spriggan teammates.

It's a form of Caster Magic and classified as a Subspecies Magic, derived from the principles of Destruction Magic, Nullification Magic, and Shadow Magic respectively in terms of mechanics. It's alternatively referred to as Destruction-Make (, Desutorakushon Meiku; lit. "Impure Genocidal Force Molding Magic") — not unlike its sister counterpart, as its confirmed to be a unique form of Molding Magic — using its basics to reinforce its functionality.

Overview
"You denied wanting to meet your end by the spiritual darkness; at least then, you wouldn't have suffered as much. So be it! I will rectify that mistake for you and grant that fervent death wish you have, wanting to cling to this pathetic material existence. Just remember.... there's no turning back and no second chances. You end will be a painful one, I assure of that much!"

- Phobos upon being forced to use this magic while in his physical state, his other magic having "failed him".







Trivia

 * This is typically based off of Rashouman from the anime series, Bungou Stray Dogs; it's considered to be one of the author's favorite powers thus far, this articles serving as a reason to "fanonify" such an ability.
 * Not surprisingly, humanoid Phobos is based off of Ryunosuke Akutagawa from the same series, the bearer of such an ability — making the comparison more intentional.


 * This magic and Zeroth Nightmare Complexion are considered to be antipodes to each other, according to the author; this is due to them being functional while Phobos is taking on a specific form. The former is more physical and the aforementioned is spiritual.
 * Interestingly enough, this would make technically make Phobos the only Spriggan member to have more than one unique magic, even if they're usable under certain conditions.


 * The second part of this article's name comes from two different sources. The first half is based off of  — a rakshasa king who ruled over Lanka and is the primary antagonist in the Hindu epic, ; like Phobos himself, he's known to be incredibly wise. Not only that, he couldn't be harmed by supernatural phenomena — only vulnerable to human machinations. To an extent, this represents Phobos being primarily unaffected by magics, beings or events closely tied to the supernatural in lieu of his status as one belonging to such a realm. The second half comes from the word dusk, which intentionally alludes to Phobos' affiliation with the night and darkness, as well as the nature of this magic.