Union Magic: Demon-Dweller Sword: Protecting Light 「合体魔法『宿魔の剣・護光』 Gattai Mahō "Shukuma no Tsurugi Gokō"」 is a sword and light-based Union Magic spell.


Using the Demon-Dweller Sword's ability to connect to their allies, the two mages grab hold of the sword, and the Sword Magic user channels the Light Magic user's power through the sword to their allies. The Light Magic creates a large protective aura[1] that also boosts the recipients' speed.[2]


  1. Black Clover Manga — Chapter 210 (p. 7-9).
  2. Black Clover Manga — Chapter 210 (p. 12).


Sword Magic Spells
Demon-Slayer SwordDemon-Dweller SwordDemon-Destroyer Sword
Origin FlashOrigin Flash BarrageDemon-Dweller Sword: Conquering Eon
Demon-Dweller Sword: Protecting Light (Light)
Light Magic Spells
Light Sword of JudgmentBright Judgment WhipHeaven-Splitting FlashLight Shaft of Divine PunishmentArrows of JudgmentLamp of AviorLamp of Avior Gloria
Healing Ray of LightAbsolute Monarch of Divine Brilliance
Elemental QuintetStorm of Light Imperial Swords of Conviction (Mirror) • Demon-Dweller Sword: Protecting Light (Sword)
Compound Magic Spells
Ice + Mist
Cage of Infinite Hail
Lightning + Steel + Wing
Thunder Arrow
Light + Snow + Painting
+ Sandstone + Wing
Elemental Quintet
Union Magic Spells
Fire + Lightning
Flame-Lightning Explosive Cannon
Butoh + Song
Sea God Slash
Steel + Glass
Le Château du Verre
Light + Mirror
Storm of Light Imperial Swords of Conviction
Mirror + Eye
Reflect Iris
Sword + Light
Demon-Dweller Sword: Protecting Light
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