Edited sentence: As of Soul Calibur IV, the storyline appears to be that Siegfried has Soul Calibur, and that.In the ending of Soul Calibur IV, Siegfried and Nightmare will probably face off, and that will probably decide  the ending of Soul Calibur IV.Nightmare has Soul Edge.Since Nightmare's armor is orange, and blue, with a gap between his.Which Siegfried probabaly used  Soul Calibur to do after he defeated Nightmare, then he got Soul Calibur after Soul calibur and Soul Edge where separated.defeated by Siegfried.stomach, which has a glowing orb in it, similar to the one that Abyss has in Soul Calibur III,.this means Siegfried defeated Nightmare and then Nightmare took over Abyss's body after he was