Dark Cloaked Deep Black Blade

Dark Cloaked Deep Black Blade (闇纏・深黒刃) is a Dark Magic spell.

Description
With their power boosted by Shadow Magic, the user coats a Mistilteinn Blade in darkness and then swings the blade at a target. The strike is strong enough to cause minor damage to the King of Devils.

Trivia

 * The injury it makes on Lucifero's arm resembles a three-leaf clover.