Gravis looked at the gigantic star of lightning. Using a Lightning Crescent always wasted a lot of lightning, which was why Gravis couldn't absorb all of it back after attacking.
However, there were still around 40 Mid Minor Circulation Immortal Kings in that sphere.
That would easily be enough to become a Late Minor Circulation Immortal King for Gravis.
However, Gravis wouldn't absorb the Energy. This would be stupid beyond belief.
Why?
First of all, his Will-Aura would only be slightly stronger than his Realm then, severely weakening his most powerful weapon.
Second of all, if someone found a Late Minor Circulation Immortal King in this area, they might see him as a threat.
But wait a minute, there weren't any powerful people left! Who could possibly threaten him here?