The Ancestor of the True Life Sect glared at Gravis with absolute hatred.
Gravis had killed their Core Plant. Even if he killed Gravis now, the True Life Sect would sooner or later fall from their status of being a Peak Sect.
The Core Plant was the very foundation of every Peak Sect. If a Peak Sect didn't have a Core Plant, another Core Plant from a different Peak Sect could simply stride into the Sect and take over the territory.
One should never forget that the Ancestors weren't the most powerful people of the Peak Sects but the Core Plants. The Core Plants just never fought openly since they weren't interested in fighting anymore.
Gravis had essentially killed the True Life Sect with that maneuver.
Gravis and Mortis saw the Ancestor of the True Life Sect and only smirked.
This was it.
This was the last battle before they could become Heaven's Magnates.