To do this he recruited Astaroth, Ivy and Lizardman to speed up the process while he prepared the ritual to restore the sword. In Soul Calibur II Nightmare continued his wave of destruction in order to restore Soul Edge to its complete form. As Nightmare he continued to spread destruction and death across the land. Eventually he was fully corrupted by the sword and took on the name Nightmare. Unaware that this was a deception of the sword's power, Siegfried carried out a killing spree. Soul Edge promised Siegfried the resurrection of his murdered father if he gathered enough souls. After Siegfried claims the sword as his own, a voice speaks to him. Nightmare, the ' Azure Knight' is the name Siegfried took on after taking Soul Edge from a defeated Cervantes and battling Inferno. The more powerful Soul Edge becomes, the fleshier the sword becomes, and the less human Nightmare looks. It wields 'itself', the shapeshifting spirit sword Soul Edge, in the form used by Siegfried, an enormous zweihander, specifically to mock him. Once a name taken by Siegfried Schtauffen when he was possessed by the Soul Edge sword, Nightmare is now the blade's evil consciousness taken physical form through the same Azure armor that its host once wore.
