'Now comes the hard part.' Zatiel's eyes focused as he drove the full power of the Destiny Karmic Reincarnation Omega Law.
Erasing a Rank 9 life form from the universe was a monumental feat that very few could take credit for, so one could imagine the expression of the powerhouses if they heard the Neo-Demon Ancestor's thoughts. Yet, he was not bragging, as what he sought to do next was much harder.
The power of the Destiny Karmic Reincarnation Omega Law exploded as trillions of karmic threads emerged from Zatiel's body, extending all over the Prima Universe.
Every interaction, no matter how great or small, formed karma. Zatiel could take control of it thanks to his Omega Law and use it as a conduit.
There was immense raw energy and soul force left in the Fourth Circle of Hell's origin. Leaving it behind would only allow the Soul Core of Existence to form a new Phlegethos in the future, but destroying it would be too wasteful.