Covert Black-Ops Arms (黒き腕の暗々裏,Kuroki Kaina no An'anri?), full name Black Abyss: Covert Black-Ops Arms (深淵闇躯黒き腕の暗々裏,Burakku Anku Kuroki Kaina no An'anri?), is a Super Move performed by Fumikage Tokoyami while utilizing his Black Abyss technique.
While cloaked in Dark Shadow, Fumikage enlarges both Dark Shadow's arms to gigantic size. He attacks with both giant arms at the same time and swiftly crushes his target. Fumikage first used this attack to pass the first phase of the Provisional Hero License Exam.
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