Personal Info Edit
Weapon: Complete Soul Edge
Weapon Name: Soul Edge
Soul Calibur 3 Edit
*Night Terror appears in an alternate ending scenario where Zasamel accidentally gives the power of Soul Edge and Soul Calibur to Nightmare, when he used his arts and tried to take Soul Edge's power for himself, instead of taking both swords at the same time.*
Soul Calibur 5 Edit
The cursed sword Soul Edge exists in both the normal realm, and the realm of Astral Chaos. However, while it is usually incomplete in the normal realm due to having been broken apart long ago, the sword always exists complete inside Astral Chaos.
As such, Nigh Terror - being the incarnation of the complete Soul Edge - lurks in the depths of Astral Chaos, destroying any foolish soul that comes into his path. Due to this, despite utilising the power of Astral Chaos as his own and wanting to rule over the realm, Algol himself is wary of Night Terror and avoids facing him due to his immeasurable power. Night Terror is implied to be an separate being from Soul Edge, implicitly the personification of the Astral Chaos itself.