Gjallarhorn

ギャラルホルン · Magic Items · World Items

A World Item seen only in Web novel settings; its effect is undisclosed, and the author's setting notes call it a higher (?) version of the super-tier spell [Summon Avatar of God].

• Source: the World Item list in the Web novel's "Settings" section; it does not appear in the light novels (Web setting)
• Author's setting note: "A higher? version of the super-tier spell [Call Avatar / Summon Avatar of God]"; Japanese sources' super-tier spell list also records [Summon Avatar of God] as its lesser version (Web setting)
• Holder, appearance, and usage conditions are all undisclosed
• Named after the horn Heimdallr sounds at Ragnarök in Norse mythology

Notes

Whether it exists in the light novels is undisclosed (unconfirmed in the books).

Same category

• World Items
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