During the Doom Slayer's journey to end Hell's invasion, he took the Dark Lord's life sphere from the Blood Swamps to the Holt in order to give him a physical body to destroy him. Upon reaching the corrupted Urdak, the Doom Slayer fights his way through the forest to get to the Luminarium. While proceeding through the forest, VEGA, who now is the Father contacts the Slayer along the way, explaining to him the events that happened on Urdak, thinking that the Slayer will help him restore Urdak and resurrect himself to a physical body, unaware of the events that happened in the Blood Swamps and that the Slayer carries the Dark Lord's life sphere. Just beyond the holy chamber, the Slayer is confronted by the Seraphim upon reaching the Luminarium’s entrance. Suffering from the Transfiguration, the Seraphim is transformed into a corrupted version of himself, and after a lengthy battle is ultimately defeated by the Slayer and teleported away by the Father, for "there was no point in killing him". Despite being warned that bringing the Dark Lord into physical form is irreversible, the Doom Slayer resurrects him and discovers that the Dark Lord is an alternate version of himself who originated from Hell.