Although the situation outside is already a mess at this stage, Wu Song is not worried about Tailing City and the Holy War Alliance, in fact, after this stage of recuperation, the Holy War Alliance already has a strong combat effectiveness, with the full assistance of Wu Song, the Holy War Alliance has cultivated as many as three or four thousand strong people above the hundred level, and these people, together with the original power of Tailing City, have formed a force that no force on any side dares to underestimate.

If this were to be changed to normal times, Wu Song might still worry about whether those gods or demons would launch an attack on the Holy War Alliance, after all, the current Holy War Alliance is different from the previous Tailing City, what he owned at the beginning was just a city, as long as he defended the Tailing City, basically even if he would defend all the family property, but now with the participation of a large number of countries to form an alliance, Wu Song needs to worry about not a city. It was a behemoth that was even broader than the previous Heaven Sealing Empire.

This territory is bigger, and the conflict between the Heavenly God Temple and the Dark Temple will naturally increase, but in the latest stage, Wu Song doesn't need to worry about the Heavenly God Temple or the Dark God Temple coming to trouble the Holy War Alliance, those Heavenly God and Demon have been tossed by the Red God Beast to take care of themselves, and where will they have the leisure to run to find trouble in the Holy War Alliance, to put it mildly, Wu Song feels that he should have fun if he doesn't go to them at this stage, plus there are Kavillon and others on the main plane, Wu Song didn't need to worry too much, and it was precisely because of this that Wu Song put all his thoughts on how to improve his level.

Speaking of Wu Song's level increase, it can be described as riding a rocket, in just a few years, he has already raised his level to one hundred and twenty levels, this terrifying improvement speed is not only fueled by drug seedlings, but also inseparable from Wu Song's own crazy hunting.

In fact, for the higher creatures of this plane, it is a very frustrating process to improve their own level, the higher the level, the more huge the amount of soul power required to improve the level, and the matter of raising the level is not at all something that can be accumulated with quantity.

If it is said that hunting mutant creatures of the same level at level 50 can obtain 100% soul power, then hunting level 50 mutant creatures at level 100, the effect that the soul power obtained is only about one-third of that of level 50, which is not to say that hunting level 50 mutant creatures at level 100 will reduce the soul power of mutant creatures after death, but because with the increase of level, the soul power required has changed in addition to the number of changes, and the purity has also changed.

The purity of the soul power released by the death of low-level mutant creatures is relatively low, and the soul power released after the level is increased cannot meet the needs of high-level creatures at all, in this case, if a high-level spirit master wants to improve the level, he must absorb the soul power of relatively high purity as much as possible, and the purity of the soul power is closely related to the level of the dead organism.

In other words, if a high-level spirit master wants to improve his level, the best way is to hunt high-level mutant creatures, and what is most lacking in this plane is high-level mutant creatures, so after the level of a spirit master reaches level 100, the speed of upgrading will become slower.

Wu Song once asked Lisa, the Fallen Queen, how her level was raised, and the answer she got was that the Dark Country has some passages to other planes, and they reach other planes through these passages to hunt mutated creatures from other planes to improve their level, and some other big forces such as the Heavenly God Temple of the Fengtian Empire, the main way for their masters above level 100 to improve their level is also to go to other planes to hunt mutated creatures or demons to improve, Comrade Xiao Wu also traveled a few times during this period according to the method that Lisa, the Fallen Queen, said, but through these trips to other planes, he found that it was not as easy as he imagined to improve his level in other planes.

Wu Song went to a few planes, and found that in these planes, it was more accurate to assassinate than hunt mutated creatures, those powerful mutated creatures have high intelligence, and they are also like human beings, forming a strict social system, under this system, as an outsider, almost every time a human master kills a high-level creature, he will face the danger of being besieged, in this case, there is no speed at all to hunt, and for most planes, In the past, human masters were subject to many limitations.

Some are limited to the time spent in that plane, and some are limited to some special abilities of human masters, where the hunting can be described by the word aggrieved for the masters, there is really no way, and the masters can only choose another way to improve their level, that is, to hunt slightly lower-level creatures in some planes with relatively low abilities to improve their own level, like the fallen queen Lisa, she basically can't find the opportunity to hunt creatures of the same level, And her level is basically improved by hunting creatures of about level 100.

For the kind of upgrade method that can only be upgraded for decades or even hundreds of years, Comrade Xiao Wu is obviously not eye-catching, this guy is used to rapid upgrading, and where is he willing to go back to the hard days before liberation, and there is a limit to forcibly upgrading the level through drugs, after several promotions, now the drugs that the Northern Emperor Stusso got out of the medicine have basically no effect on Wu Song, and after cutting off the way of pulling seedlings to help promote this, Wu Song's upgrade method has also returned to the original, However, let him go to other planes to hunt those low-level mutant creatures, this guy will definitely not do it, he thought about it and finally hit the idea on the plane tree.

It is obviously impossible to hunt the plane tree upgrade, there is only one plane tree in a plane, and the entire plane will collapse after killing it, Wu Song is not stupid enough to pick up the house and catch the crickets and finally bury himself below, but this plane tree guard is obviously okay to hunt some more, those plane tree guards are generally above the hundred levels, and some are even higher than Wu Song, and the soul power released by hunting them Wu Song is just right.

In addition, for Wu Song, plant-based mutant creatures are also the easiest creatures to hunt, and his flame ability can form the most powerful restraint against plant-based mutated creatures, so almost every time Wu Song comes to the side of the division, those plane tree guards will follow with great luck, fortunately, there are plane trees after the number of these plant-based mutated creatures is reduced to a certain point, and so on, this place has almost become a personal training ground for Comrade Xiao Wu's upgrade.