Dökkál-Svartanheim

Dökkál-Svartanheim (, Dokaru Vartanheimu; Old Norse for "Home of the Black Elves", Japanese for "Mythical Downgrade: Reverse Power Flow of Nature") is one of the more potent Magic Phenomenon known to every dimension, relying on the powers of the Ley Lines to properly function; it's something that's more beneficial to those weaker, allowing them to pull off "miracles" against those more powerful through either willpower or by chance. This gave the phenomenon the name "Bane of Absolute Might" (純然力の天敵, Junzenryōku no Tenteki), which became synonymous to those that studied all forms of magical anomalies and evolution alike.

It's considered to be unpredictable and random by nature, activating at moments that's least expected by users; the only clue that's linked to this phenomenon's overall mechanics is one's "willpower". It seems that another name for this phenomenon is Miracle Personification (神事体現, Kamiwaza Taigen), as its able to bring about the events that defy the very laws that govern all creation; to an extent, this would make it one of the few godlike powers that's invoked by mankind — albeit not on a whim.

Overview
"Legend foretells that this phenomenon was born from mankind's desire to be liberated from the Gods, who've decided their fate for such a long time and toyed with their very existence as a mere convenience. It was a way to punish their tormentors, giving them the taste of the exact pain they've inflicted on those weaker than them. Naturally, this is something that was feared by the Gods themselves, so much so that they made a pact to never intervene in mortal affairs unless necessary. One can say that this was a type of victory, something that will last until the Final Judgment."

- A scholar's describing the possible origins of this phenomenon.





Trivia

 * This is, more or less, based on the Shrink card from the Yu-Gi-Oh! franchise.
 * The phenomenon was wholly based on the phrase "To turn into a fairy" (妖精化, Yōseika) — something used in the earlier ages of Christianity to "fend off" against anything the people considered to be paganistic to their religion. It's unknown what the methods involved, but the end result is that a pagan god or entity will be turned into something that can be manageable, thus the overall meaning of the phrase. This phenomenon follows the same principle, as Gods and other powerful beings are weakened to the point where they can be "managed" without the aid of Slayer Magic.
 * Dökkál-Svartanheim is a combination of the words "Dökkálfar" (Dark Elves) and "Svartanheim" (World of the Black Elves), both of which are derived from Old Norse mythology.
 * To be honest, this was something that was slightly inspired by Ardor, created byPer, to an extent — seen how characters are able to do unexplained asspulls against those either more powerful or more skilled just using "sheer willpower".