Chapter 2373: 2373 Chapter 2373: System, What Exactly Are You? One by one, skeletons appeared, moving quickly and rapidly occupying a large area of the starry sky. Under the linkage of spells, the undead legion began to automatically summon and replenish itself. After Lin Moyu’s promotion, stimulated by the power of the origin, all his spells became significantly stronger. Although they were still at the white star level and had not advanced to the neutron star level like the Bone Hell, they were much stronger than before. Now, the secrets in Lin Moyu’s eyes had greatly diminished, and he understood the differences between spell advancements. In the system of the Great World, spell levels can be divided into four levels: planetary, stellar, white star, and neutron star. There is no more powerful black hole level; his previous thoughts were incorrect. The neutron star is the highest level in the Great World. It is not as he previously thought, that there is a black hole above the neutron star. Just like the Bone Hell, it is already the strongest in the spell system. Generally speaking, only peak Supremes or Celestial Venerables can have spells reach such a level. If there is something even stronger, it would be the origin level. However, origin-level spells require the fusion of external origin, which generally only Celestial Venerables can achieve. In ancient times, only Celestial Venerables could turn their spells into origin-level ones. But the origin obtained by Celestial Venerables is generally only third-rank, and the effect after fusion is not very strong. It is very difficult to find origin above the third rank, and even Celestial Venerables may not be able to find it. The skeletons continued to summon, which was estimated to last several days. Lin Moyu was not in a hurry and continued to examine his other changes. Several passive spells had enhanced effects, but Lin Moyu knew they were actually of little use. Once he left the Great World, these spells would lose their effectiveness. And in the Great World, he no longer had any enemies. So these spells either need to be advanced to the origin level or should be temporarily ignored as if they don’t exist. Summoning spells would also be suppressed in the Realm Sea, greatly reducing their effectiveness. However, as long as these spells can be advanced to the origin level, the problem will be solved. The Bone Hell had never been used in the Realm Sea, but Lin Moyu thought that since the Bone Hell had reached the neutron star level and contained the power of both reality and illusion, it should still be effective in the Realm Sea. Corpse Explosion is the most special; it seems to be unrestricted no matter where it is. Why this is so is one of the few things Lin Moyu does not know. The Wings of the Undead cannot drive space laws in the Realm Sea, but relying on soul power, it can still exhibit amazing speed. The Time Curse is the same; once it leaves the Great World, the spell will be suppressed. After calculating, Lin Moyu found that once he entered the Realm Sea, only five spells would still be usable. The Skeleton King and Corpse Explosion would be the main attacks, while the Bone Hell would be both offensive and defensive. Because Resurrection of the Dead had advanced to the origin level, it would become the main battle spell in the Realm Sea. In addition, there was one last spell, the Divine Power Lich! The Divine Power Lich had already proven its strength in the Realm Sea. With the Ancestral Water, the Divine Power Lich could summon the true body of the Great Dao and deliver a punch comparable to a Celestial Venerable. After examining all his spells, Lin Moyu finally focused on his World Tree. The origin power of the Great World surrounded the World Tree. Stimulated by the origin power, the World Tree rustled, and the entire tree trembled. Lin Moyu did not let it absorb the origin power; such a small amount of power was not enough for it. These origins of the Great World were hard to come by, and Lin Moyu wanted to save them for the future. Although the World Tree did not absorb the origin, it was still stimulated by the origin power and rustled happily. The World Tree became taller, and its branches and leaves became more luxuriant. The spiritual flowers and fruits on the branches seemed to be maturing. After Lin Moyu’s promotion to Supreme, with the infusion of origin power, the rule world expanded significantly. The World Tree also grew, continuing to cover most of the rule world. At this moment, the World Tree was already unimaginably large, the largest tree Lin Moyu had ever seen. Any leaf was much larger than Lin Moyu’s soul, making him look very insignificant under the tree. The million-meter giant tree he had seen before, even the starry sky giant tree at full strength, was far inferior to his World Tree. Even so, the World Tree was still in its infancy. Lin Moyu, as its owner, was also somewhat perplexed. It had grown so large, yet it was still in its infancy. How big would the mature World Tree be? Besides growing larger, the World Tree’s abilities had not changed much. The cooldown time for new growth had decreased from 20 seconds to 15 seconds, still only three times, with almost no other changes. Lin Moyu felt that the World Tree had reached a certain threshold and needed a sublimation to enter the next stage. But he had not yet figured out what this threshold was. "Do I need to advance to Celestial Venerable?" "Or are there other conditions?" Lin Moyu couldn’t think of the conditions for now and could only take it one step at a time. The existence of the World Tree made him feel something unusual. He recalled the appearance of the World Tree, which came from three innate flames. Looking back at how he obtained the three innate flames, it seemed somewhat off. It felt like it was arranged by someone, and the one who arranged for him to get the innate flames was the system that had already left. The system’s sudden appearance back then gave him divine-level talents, changing his life. Later, the system left, disappearing from the soul void without a trace. But then, the system suddenly appeared again, killing the Buddha of the Buddhist clan and saving him once. After that, the system never appeared again. Lin Moyu couldn’t be sure if the system had really left. Perhaps that time was just a backup left by the system. Lin Moyu recalled the distant past and was now certain that the system must have self-awareness. In the beginning, the system seemed to be guiding his development and growth. It seemed natural, but the system’s influence was behind it all. "The higher the realm, the more you understand, and the more unsolvable mysteries there are!" "System, what exactly are you? And what is the World Tree?" Lin Moyu couldn’t explain and eventually gave up thinking about it. Perhaps one day in the future, he would uncover all the secrets. The skeleton summoning lasted for ten days and finally stopped. The number of the undead legion doubled again. The number of Skeleton Generals increased from 2.5 billion to 12.5 billion, and the number of Death Knights increased from 500 million to 2.5 billion. The number of Legion Rulers did not increase much, only from 5 million to 10 million. However, the Legion Rulers had always been in an awkward position. A small portion of them had become Undead Commanders, but it was a negligible part. The remaining Legion Rulers commanded the Death Knights, forming legions. With 2.5 billion Death Knights, they could only form 25,000 legions. There were still 9.97 million Legion Rulers in a resting state. These Legion Rulers were usually used as medics, but there were too many of them. It would be better to have fewer legions but stronger combat power. Lin Moyu believed that the Legion Rulers would have their use. Their existence must be reasonable, and there would be a place for them. He was not in a hurry. The most crucial increase was in the number of Skeleton Generals, which also meant an increase in the number of Skeleton Kings. The number of Skeleton Kings increased from 50 to 250, greatly enhancing combat power.