According to his earlier estimates.
Once he broke through to the Void Refinement Late Stage, Wang Yu's combat strength would reach yet another peak. Ordinary Weak Dao Integration beings were basically no match for him.
As for beings who walked the orthodox Dao Integration path, unless they were like Hun Mu of the Soul Demon Clan—whose abilities were countered by him, who had been overly exhausted, and who had even been despicably Backstabbed—
Otherwise, perhaps defeating them would not be difficult, but killing them... that would be hard beyond hard. The higher one's cultivation realm, the fewer such existences there were, and correspondingly, they were extremely difficult to kill.
If not for having been eroded by Zhunü's Death Dao Principles, Hun Mu should have possessed some trump card for revival. As for whether he had thoroughly killed the other party, even Wang Yu himself could not be certain.
In the future, perhaps he could put more effort into the Slaughter Dao Principles and find a way to create some kind of karmic killing divine ability. Otherwise, these Great Cultivators were too good at clinging to life, which was also a problem.
Putting aside all sorts of special factors, merely within the Demon Refining Domain, Wang Yu could say with certainty—
He was almost invincible!
After ending this stage of seclusion, he was no longer in a hurry to push his cultivation forward. He still had a long time to settle himself within the Demon Refining Domain.
Half a sixty-year cycle was enough for the events of last time to return to calm. It was time to contact Zhunü and learn some information about the Old Day System.
While he was at it, he could also go look for Mo Sangqi.
To probe whether the Alien Spies were planning a counterattack.