|This article is about the item. For the event, see Etherion (Event).|
The Etherion (エーテリオン, Ēterion) is a magical jewel passed down by the Royal Family of Granorg. Worn by the royals for safety during the Ritual of Flux to stall the desertification of the world, it has the effect of protecting the Ritual's caster from having their Mana drained. Although this tool has been a priceless treasure, Protea, who is not of royal blood and does not know of the Ritual, thinks it is only a jewel.
In the Alternate History, Hugo integrated it in the control unit of the Divine Judgement, maximizing its power. It was then nullified by the version of the Etherion that Eruca had entrusted to Stocke in the Standard History.
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