Dark Night Slash (ダーク・ナイト・スラッシュDāku naito surasshu) is a second deadly attack along with Black Edge Throw and Dark Night Storm and was used for fighting against his enemies. If the battle with Death Rebel continues for a long period of time, he'll spins and powered up his Deatheria and launches a giant crescent waves at the enemies. Also the Dark Night Slash as Finishing Move which used against the enemy Mamodo is weakened from fighting with Death Rebel. Afterwards it creates a massive black circle explosion that sends the Artificial Book Keepers when weakened into space.