One Thousand Obsidian Blades: Obsidian Spiral
Obsidian Spiral
Kanji 千刃黒耀剣 黒耀螺旋刃
Rōmaji Senjin Kokuyōken: Kokuyō Rasenjin
Type Ancient Magic
Known Users Fate Averruncus
Purpose Offense

One Thousand Obsidian Blades: Obsidian Spiral (千刃黒耀剣 黒耀螺旋刃 Senjin Kokuyōken: Kokuyō Rasenjin?) is an Ancient Magic of earth element utilized by Fate Averruncus.[1]



  1. UQ Holder! Manga: Chapter 41, Page 4


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