The one who delivered the final fatal blow to the Ancestor of Eternal Fire was Despair Matriarch Ilena.
This final strike had not been deliberately arranged for anyone to deliver. It was purely a stroke of fate—one rule attack unleashed by Ilena happened to completely wipe out the last trace of life force, consciousness, and will remaining within the Ancestor of Eternal Fire. Only then was the Ancestor of Eternal Fire's fall truly settled beyond dispute.
Ilena's fatal move was a Time-Space Freeze Pierce that fused Space-Time Law with the origin of death and despair.
This strike not only precisely pierced through the Ancestor of Eternal Fire's already shattered Rules Body, but also bored straight into the core of his true spirit, grinding that lingering thread of true-spirit will into nothingness and leaving not even the slightest possibility of rebirth.
At the same time, the power of that piercing attack spread outward, freezing the battlefield space for tens of thousands of miles around. The violently surging Flame Power froze in an instant, creating an eerie scene where death and fire intertwined.
Although the Ancestor of Eternal Fire had completely fallen, everything he left behind, good or bad, was enough to affect the entire battlefield's situation—there was no end to the good stuff, while the mess he left behind was equally troublesome.
The valuable Spoils of War included not only the Origin Rules core condensed from the Ancestor of Eternal Fire's lifelong cultivation, but also Dimension Supreme Treasures such as the Sky Burning Staff. Every item made the powerful covet them endlessly.
As for that troublesome mess, it was the vast Flame Power the Ancestor of Eternal Fire had frantically accumulated before his death. It now resembled an out-of-control savage beast, ceaselessly devouring and sweeping across vast stretches of the Fire