Vainly fighting the blade, Raziel was struck by an epiphany that the physical Reaver is empty - the soul devouring entity that Raziel has sensed within the physical Soul Reaver previously and had carried with him as the Wraith Blade throughout his journey was in fact a future version of himself, taken into the blade at this moment.
Raziel watched in alarm as the wraith blade uncoiled from him completely and wound around the physical Reaver blade, forcing it to turn on and impale Raziel himself. As he did so, the Wraith Blade manifested (after being disabled by Moebius's Staff in the last chapter). Impaling his former self on the Reaver, Raziel killed his human incarnation and renounced his past completely.
Main article: Raziel (Soul Reaver 2 boss)