They take the souls they had previously devoured and reintegrate them into the souls of the puppets, then extract a portion of the power from the puppets' souls and return it to their own bodies.
In this way, their souls, without being weakened, still managed to control the puppets.
When they control a sufficient number of puppets, their power not only does not decrease, but continues to increase.
"They enhance their power by absorbing the Lord of Souls of their puppet masters, which is why their puppets are so numb and senile—it turns out their souls are damaged."
They too must search for new worlds to control more puppets, absorb more soul power, and increase their own strength.
This is almost identical to that of wizards; when the resources of their own world cannot be utilized, they can only seek development outside of it.
Their methods for searching for other worlds are somewhat similar to, and somewhat different from, those of wizards; their powerful soul energy allows them to more easily receive detailed signals from the universe.
Once they find a new world, they will slaughter, control, and turn all life in the world into puppets to strengthen their power.
One thing that caught Leo's attention was that they didn't absorb the souls of the beings they killed; instead, they collected them and sent them back to the Returning Breath World.
These souls, sent Returning Breath World, will be transformed into white insect eggs through a series of processes, awaiting the next round of evolution.
"So that's how it is. They can only absorb the soul power of controlled puppets, not the souls of those they kill."
"Those souls will become new life in their world after undergoing its transformation."
"Their utilization of soul power can be described as 100%, sparing neither the dead nor the living."
Leo stared unblinkingly at the black vortex passage on the screen. It was through this black vortex passage that the Lord of Souls sent the collected souls back to the Returning Breath World.
"This should be the Soul Passage mentioned by the Interstellar Wanderer Stigmata Wizard," Leo said.
Seeing this, Leo understood why all the Stigmata Wizard and World Lord had gone to the Soul Passage.
On the battlefield now, countless souls appear every instant, and these souls are collected by the Lord of Souls.
Even if they don't collect all of it, but only 50%, that's still a terrifying number.
If they send these souls Returning Breath World, countless more Lord of Souls will emerge hundreds of years later.
So even though the wizards seem to have the upper hand in this war, the Lord of Souls haven't lost either.
They collect the souls of dead puppets, and they also collect the souls of dead wizards and slaves.
It seems that more of his puppets are dying, and his strength is decreasing.
In reality, no matter how many puppets die, as long as the wizards and slaves die and their souls are collected, their power increases.
The Soul Passage is their lifeline. As long as they control the Soul Passage, their strength will continue to decline. However, if they cannot control the Soul Passage, their strength will increase infinitely due to war.
"Their World Will is truly powerful, capable of nurturing such life forms and such methods of enhancing their strength."
Leo only glanced at the important parts of the following scenes. It was impossible for him to miss anything from thousands of years of footage; he had to look at everything very carefully.
From this perspective, two years had passed since the Lord of Souls finished playing all his memories, and Leo remained in the Shadow Space without showing himself.
"If you want to infiltrate the Returning Breath World, the Soul Passage is one way,"
"However, the current Soul Passage battles are frequent, and they are all large-scale battles between multiple level five or six Stigmata Wizard Lord of Souls, which is completely unsuitable for going there now."
Leo pondered carefully,
There are three purposes for participating in this great war between the two World Cluster. The first is to complete the mandatory mission of the Wizard World, which is something I have no choice but to participate in.
The second is to find an opportunity to learn their soul magic and see if it can help resurrect Alice.
The third is to find a way to enter the Returning Breath World once, and try to fulfill the conjecture in my heart.
The first task is currently underway, and the remaining two tasks are showing promise. Although he cannot personally enter the Returning Breath World, he can easily do so by tearing his soul apart and sending fragments inside.
Through their transformation, they will be cleansed and become beings of the Returning Breath World, able to openly and legitimately learn everything from them.
As for whether his soul would break free from his physical body, Leo guessed that it was highly unlikely. His soul was anchored in the Shadow World, and although the Returning Breath World was powerful, it could not shake the Shadow World.
The only problem is that there's constant fighting at the Soul Passage, and he can't guarantee that his torn soul will be accurately captured by the Lord of Souls and pass through the Soul Passage smoothly.
If we get intercepted by the Stigmata Wizard halfway through, that would be terrible!
Leo thought for a long time but only had a few immature ideas. He could only wait and see how things changed. He hadn't been out for two years, so who knew what changes might have occurred outside in those two years?
However, before leaving, we should first check if the Shadow Space has been damaged in the previous battle.
The original Shadow Space underwent another evolution after absorbing the World Lord the Marsh World and the two level-four puppets controlled by the World Tree.
It transformed into a small plane with a length and width of one thousand kilometers, slightly larger than Leo's demiplane in the Wizard World.
Of this, the ocean covers 70% and the land covers 30%. The entire Shadow Space is no longer the desolate, empty plane it once was.
In the current Shadow Plane, life is everywhere.
Various rare plants and animals were cultivated, and Leo adjusted the rules to suit their environment. The entire Shadow Space has now fulfilled the original idea he and Yaoyao had envisioned.
Various precious, endangered, and already declared extinct plants and animals have thrived and reproduced here.
"There's about 2% damage, and even with gradual adjustments, there will still be a permanent loss of 1% of the plants and animals." Yaoyao had already thoroughly investigated the situation in the Shadow Space.
Because the Lord of Souls's memories were too important, Leo didn't have time to come and check them out. Yaoyao took a look around first and even directed the puppets to carry out emergency rescue.
"A loss of only 1% is perfectly acceptable."
The losses were less than expected. Just as the Level-Five Lord of Souls was about to unleash his power, Leo suppressed him with the Power of Laws.
If Leo had acted any slower, the losses could have been much greater.
Judging from the situation at the time, that Lord of Souls even wanted to overturn and destroy the entire Shadow Space.
"Why did the Lord of Souls die in the Shadow Space, and why didn't the Shadow Space evolve?"
"Even the level four puppets controlled by the World Tree could promote the evolution of the Shadow Space back then," Yaoyao asked, puzzled.
Reminded by Yaoyao, Leo also realized what was happening.
Yes, why didn't the death of the Lord of Souls in his own Shadow Space cause the evolution of that Shadow Space?
The evolution of the Shadow Space requires the Planetary Core and the Power of World Origin, World Lord all possess this power.
Leo had initially speculated that the level four puppet controlled by the World Tree might not possess the Power of World Origin, but it turned out it was indeed absorbed by the Shadow Space and completed its evolution.
Although they possess little primal power, they do indeed possess it.
But when it came to the Lord of Souls, there was none at all.
That's really strange!!
"It's too early to say for sure; we'll only know for sure after we enter the Returning Breath World," Leo said.
Leo hadn't expected that the Lord of Souls wouldn't possess the Power of World Origin. Even he, the Lord of Souls, still possessed a trace of the Wizard World's origin power.
"Let's go. I haven't been out for two years; I wonder what it's like outside."
Leo tore open the space and stepped out.
"What else could it be? You've killed so many Lord of Souls. If the wizard army still can't win, then they're just too incompetent," Yaoyao said with a smile.
Leo smiled but didn't speak. Concealing his aura and figure, he appeared in the Gran World Gran World, sensing its energy tides and the ongoing war.
However, this is not the stalemate of two years ago; instead, the wizard army is hunting down the puppet army, destroying them in large numbers.
If Leo had seen this situation before, he could have smiled, after all, while the wizard army achieved victory, it also inflicted heavy casualties on the puppet army of the Lord of Souls, which was a major victory and progress in the entire war.
However, after reading the memories of the Lord of Souls, Leo no longer felt anything for low-level battlefields.
No matter how the killing takes place, no matter who wins or loses, the beneficiary is always the Lord of Souls.
No wonder there weren't many level 4 or higher combatants on the battlefield before, and even if there were, they didn't take action, just letting low-level creatures kill each other here.
For the Stigmata Wizard, fighting the Lord of Souls here is less effective than intercepting them directly at the Soul Passage.
For the Lord of Souls, the longer the war here lasts, the better. They wish that all low-level life forms would kill each other here until the end of time.
This would provide them with a continuous supply of souls, allowing their strength to grow like never before.
How many souls could one obtain by conquering a world in the past?
The harvest from a single war today can now equal the harvest of an entire world in the past!
This is a huge harvest, the most profitable income imaginable!
They wished the war could go on for as long as possible and to the greatest extent possible!
Their strength will snowball and grow bigger and bigger!
Based on the timeline, it takes 600 to 800 years to cultivate Lord of Souls. With unlimited resource investment, the potential for improvement could be significantly greater.
Based on the calculation that it takes 500 years to cultivate a new Level-Four Lord of Souls, and with the war now over a hundred years in, it will only take a little over three hundred years before the wizard army faces a massive influx of Lord of Souls.