The Ruler支配者ザ・ルーラー Za Rūrā」 is a reflective power possessed by the Demon King.


The Ruler is a magic ability that allows the Demon King to "invert" all the attacks and powers effects used against him. All attacks and weakness are converted into healing and fortification. Even the effects of others' powers are completely reversed; per example, when Ban tried to use his Snatch to steal Demon King's strength, he was forced to give his own to the ruler. However, as The Ruler functions on the concept of magic inversion rather than magic absorption, any magic meant to strengthen him or increase his power will instead weaken him, as shown by Ban. Despite this weakness, he can easily overcome it by deactivating his own power.



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