As for how to achieve the auxiliary casting function, it is not difficult for Xia Duo.

After all, he even designed the spell book, which was a simplified spell book at best, and he had completed most of the design in the time that Nia had finished a set of test papers.

Since he only made a plastic energy equation spell not long ago, when designing this auxiliary spell function, Xia Duo was consciously or unconsciously leaning in the direction of the equation spell.

"Shura Warrior God"

After all, knowledge is always relatively objective, and equation spells are essentially the embodiment of the laws of a certain field, and if you want to assist in spellcasting, you must use the laws of this aspect.

According to this design concept and direction, in fact, the spell book designed by Xia Duo before has fallen behind in an all-round way.

Of course, the premise is to derive the equation that covers most of the common spells, and Xia Duo only has one plastic energy equation at the moment, far from the time to update the spell book.

However, he could also imagine that if a spell book could be designed in the form of an equation spell, would this spell book still be a spell book? It's just magic itself.

……

In Xia Duo's completion plan, he divided the upgraded version of the communication magic weapon into four basic models according to the auxiliary spell casting function, corresponding to -

Plastics, planes, minds, material states.

These are all areas that Xia Duo is good at, and he is confident that he can provide users with a considerable degree of secondary casting effects in these areas.

The first three basically cover the creation and psychic spells of Nesserel, while the state of matter is a smaller area of the change system.

Xia Duo didn't study much about change spells, but there weren't many mages who specialized in change spells in Nessreel, and most of them might not be as good as Xia Do!

It is actually qualified for the auxiliary function of the communication magic device, after all, the preset user group of this function is the middle and low-level mages.

High-level mages don't need such a simple auxiliary spellcasting item anymore, they can use a spell book, which is much stronger than this (the premise is to design it yourself, it is difficult to buy a ready-made one directly).

But it can still be used, and for high-level mages, Xia Duo also has a four-in-one advanced version, even if it is not practical, just to collect the so-called great arcanist handmade, it is also a good choice.

In order to make money to build a floating city, Xia Duo can be regarded as doing everything he can.

……

The only thing that needs to be considered now is whether to suspend the production of ordinary communication devices.

Even if this problem is only a month in advance, Xia Duo will not be too entangled, anyway, there are few people and there will definitely be a stop first. But now, the Tower of Time has new mages promoted from time to time, which gives Xia Duo a hope-

One that can meet the hopes of both the normal version and the upgraded version of the communication device production line.

But at the same time, Xia Duo does not ignore the fact that the Tower of Time itself is also short of people, to be precise, new mages who have obtained official ranks.

The Territory Wizard had planned to recruit at least 20, but only four were in place, largely due to the lack of personnel in the Tower of Time.

In the past, he was worried that if so many apprentices were all promoted, there would be chaos because they couldn't arrange jobs for all of them.

But now, Xia Duo didn't have such worries, and he was now eager for these apprentices to advance faster so that he could meet the Tower of Time's growing demand for new mages.

"Alas!"

Xia Duo sighed, and finally decided not to suspend the production of ordinary communication magic weapons, after all, the market for ordinary communication magic weapons is not saturated yet, and he really can't give up a net income of at least 200,000 yuan per month.

"I can't say I need to do something flexible."

Thinking like this, Xia Duo already had an idea.

The solution is actually very simple, as long as a few temporary additional rank exams are on the line, under normal circumstances, the rank exam of the Tower of Time is only conducted once a month, after all, it also costs to organize the exam.

But in fact, most of the Level 3 apprentices in the trial class can become official mages immediately, but they are not confident to pass the rank exam, so they have stayed in the class to continue their studies.

If this part of the people can be released in a short period of time, then the Magic Mechanics Department will have a new batch of technicians.

As for the shortage of new mages in other places, it can only be eased for a while, anyway, there are level 2 apprentices in the preparatory class behind! By the time they come up, it won't be long before they get up.

And most importantly, two months later, the Tower of Time will welcome a new wave of apprentices.

It's hard to say the number of school-age teenagers in the Great Xia Leader Gray Eagle Tribe, after all, some of them haven't passed the language barrier yet, but Savile Leader and Xia Duo have decided to include all school-age teenagers as much as possible, so there are quite a few people.

Therefore, before the Midsummer Festival, he must complete the construction of the flight control system of the Floating City, and then get the Floating City to the main plane, otherwise the Tower of Time will not be able to fit so many people.

Even if they could, it would be difficult to support their daily magical activities, and they would not be able to carry out magical activities, so what was the point of forcing them into the Tower of Time?

In this way, Xia Duo felt more and more pressed for time, and the only thing to be thankful for was that the materials for the flight control system, the Tower of Time, could still be obtained for the time being.

I just hope that the Tower of Time can make money as fast as the construction progress of the Floating City!

……

Since the only three mass production design laboratories in the Tower of Time were busy with the engineering design of the energy transmission line in the Floating City, Xia Duo started the mass production design on his own after simply testing several models of upgraded communication instruments.

It wasn't until the end of May, and another four or five days in June, that he completed the mass production design.

During this period, Xia Duo released rumors through Brendes, Belera, Hechenis and others in Severten, saying that he was undertaking a variety of high-quality magic item customization.

At the same time, six rank exams were temporarily added to the Tower of Time, and a total of 22 apprentices in the trial class successfully passed the exam to obtain the official rank, and were immediately promoted to official mages after the exam.

Of course, these 22 new mages, along with the two junior magic technicians that Xia Duo had drawn from the paper workshop, and the four mid-level mages who had been temporarily loaned from the independent laboratory, joined the newly established upgraded communication artifact production workshop.

Compared with ordinary communication magic weapons, the upgraded communication magic weapons also require the participation of high-level mages, and Fisher, Anthony, and Cork will be useful again after slaying the demon amulet.

At this stage, only one high-level mage is enough, and when more new mages are promoted and the production line is expanded, the three of Fisher can join in.

On this day, Xia Duo just came out of the workshop where the new production line is located, and he was in a good mood, and vented his busy and anxious emotions during this time.

The trial operation of the new production line was much smoother than the previous production line, and this batch of magic technicians gave him a great surprise, and he almost didn't need much teaching, and he adapted to the state of the production line well.

But then, Xia Duo's face darkened-

Why did Cecily find this again?!