Demon's Eye (悪魔の眼, Akuma no Me) is a Caster type Eye Magic used by Hades.
Description
This Magic is based on the use of Hades' right eye, which is usually covered by an eyepatch. This magic has to be "awakened" in order to activate its yet unknown effects. It's use prompts Hades' hair, beard, mustache and eyebrows to jut out, and releases a vast amount of Magical power around him. Through the use of it, he claims to show his opponents the depths of magic which is a realm that even surpasses their imagination.[1]It is then stated to be a way for Hades to reach The One Magic world with Zeref's awakening.[2][3][4] Hades can stop using this magic by just closing his right eye again.[5]
Abilities
Enhanced Magical Power: This enhances Hades' presumably already great Magical power, creating a dark aura around him which keeps increasing gradually in might, and that terrifies Team Natsu.[6]
Living Magic (生活魔法 Seikatsu Mahō): Through the activation of it, Hades is capable of using one of Zeref's Black Arts, Nemesis. [7]