It has been more than half a month since Li Ling was injured in the duel, and in addition to healing his injuries during this time, he is learning arcane arts, and combining arcane arts with his existing system. Pen, fun, and www.biquge.info

Especially the mastery of Qiankun Douzhuan, last time Li Ling relied on it to quickly move the immortal bird flame that invaded his body from his body, so that he could save his own life, and he had not caused irreparable damage to his foundation.

It's just that at this level, Li Ling can no longer simply use his body as a transit station for moving foreign attacks, and the scope of movement must be extended to the scope of his own self-contained world, and the entire space of self-formed heaven and earth will be used as a transit carrier.

To do this, it is theoretically feasible, but in practice it is very difficult, Li Ling is constantly researching, and also refers to a lot of arcane knowledge, before finally coming to an eyebrow.

At this point, Li Ling still has to fall on the three major schools of space, magic circle and magic pattern. He needed to gain a deeper understanding of the nature of space, then transform the arcane skills he needed to achieve into magic patterns, and finally build a temporary circle of support in his own realm.

Although it is a little troublesome, Li Ling can only do this at this stage.

"There it is! Finally, the Tree of Life tree species I wanted appeared again, and this time I finally managed to get the invitation! As soon as she returned, Olena was almost incoherent with joy, hugging Li Ling and shouting.

Of course, Li Ling understood what she meant, and said with a smile: "Okay! Now that you're just getting an invitation, if you want to actually get the tree of life seed, you still have to compete with many people? ”

"As long as you get the qualification for the competition, you will basically get a tree of life tree species at auction. If it was before, relying only on the accumulation of the family, I am afraid that spending too much will affect the next territory construction. This time, with the complete corpse of that legendary abyss demon dragon, you and I will be able to share half of the proceeds, and the funds are already very abundant. You're my lucky star! Good luck for me! Olena smiled confidently.

The reason why Olena was so excited when she heard about the tree of life was because of the scarcity of this treasure and the importance it had to her and the territory she was about to apply for.

There are three types of cities under the jurisdiction of Arcane Civilizations: Normal, Semi-Arcane, and All-Arcane.

At present, ordinary cities are basically those small cities or even towns that are in the heart of the security area and are not very important, so they will be built by this ancient and backward method, and in today's era, they are almost undefended cities with little offensive and defensive capabilities.

The second is the semi-arcane city, which is the most common type of city today, and can be subdivided into many tiers of cities.

The lowest level is to arrange a certain arcane circle for defense, plus a certain amount of offensive arcane equipment.

The highest level is to establish a complete defense system and a complete attack system, as well as more than four mage towers, and a surface elemental pool is used to extract elements from the elemental plane, and finally become the energy core.

As for the all-arcane city, it means that the entire city is fully integrated into the arcane system at the beginning of construction, divided into different modules, and finally unified to build and connect with arcane, just like Hope City.

There is no doubt that the first city that Olena wants to build will naturally be the core of the future territory, and it must be a fully arcane city.

Not to mention anything else, any newly opened territory must be taken from the hands of demonic beasts or alien races, and the effect of such a fully arcane city with strong combat power is extremely huge, even if the construction cost is directly proportional to the effect.

Why Olena's family saved up for thousands of years to apply for the territory is also a very important factor.

Now, the construction scheme of the all-arcane city has long been very mature, and even the various technologies have been very perfect, and they are generally divided into four major models.

Sprite models, elemental models, tower defense models, metal fortress models, and many more mash-up models. For example, a giant city like Hope City basically includes all four models at the same time.

Of course, the vast majority of cities are far from being so wealthy, and can only choose one of the models to build.

As the core of a family, this kind of urban design cannot be faked, and Olena has devised a scheme for each of the four models. Of course, the most preferred is the sprite model.

The sprite model is inferior to the elemental model in terms of attack, inferior to the metal fortress model in terms of defense, and inferior to the tower defense model in terms of offensive and defensive balance. But it's one of the most affordable, and it's the most profitable when it's built.

That's right, no matter which model builds a fully arcane city, it will bring a lot of benefits when completed, and it also represents the positioning of the city.

Among them, the city built by the elven model has great advantages in animal husbandry, magical plants, and potion refining, and can also attract many arcane masters of the healing and nature schools. Most importantly, the elemental liquid gathered from the Moon Well is the treasure that increases and restores mana, and the life water gathered by the Life Pool is the elixir for healing, prolonging life, and rejuvenating the skin.

As for the elemental model, it naturally produces elemental magic crystals of various systems, and can also capture the life of various elementals, which can attract arcane masters of the elemental school.

Tower defense models are a favorite of the architecture and construction schools, producing all kinds of golems.

The metal fortress model corresponds to the Alchemy School and the Demon Pattern School, which are rich in all kinds of magical equipment.

In addition to the above reasons, the most important thing is that the elf model city can directly integrate a large number of plants to grow, build the prototype of the city the fastest, and have great offensive and defensive capabilities at the beginning.

The other three need to be protected and built at the same time, and the cost and time are far greater than those of the sprite model.

Of course, there are so many benefits to an all-arcane city like an elven model, and it is naturally not so easy to build one. The biggest constraint is its core, the tree of life species.

Without such treasures, such cities would be out of reach.

As one of the thirteen top races of the Arcane Council, the strength of the elven race is undoubted, even in the entire Loya world, it is also ranked in the top thirty.

However, while elves have the advantages of long lifespan, excellent professional talent (all of them are professionals), and beautiful appearance, the number has become the biggest flaw.

The total number of purebred elves added up to only five times the number of dragons who had made dragons madly (all kinds of hybrid dragon beasts of the master rank and above).

The Tree of Life, as the foundation for the reproduction of elves, is naturally extremely important to the elves.

Fortunately, with the development of the Arcane, the growth rate of the Tree of Life, which was originally equally difficult to grow and reproduce, finally exceeded the growth rate of the Elves, so that the tree species of the Tree of Life began to appear in surplus and circulated to other members of the Arcane civilization.

Especially after the appearance of all-arcane cities like elven models, even elven cities began to be built in this way, and the demand for tree species of the tree of life from foreign races was completely detonated.

Every year, the elves throw out the extra half of the Tree of Life tree species, which is still only able to meet one-tenth of the market demand.

As for activating the tree species, there must be a certain concentration of elven blood, which is not a matter at all.