Three days is neither long nor short.

In order to completely master the ability to summon and control elements within the specified time, Zhang Cheng once again entered an unprecedented state of concentration.

No food, no water, no sleep

Even going to the toilet and cleaning up personal hygiene are squeezed out, soaking in a solid basement on the ground floor of the house all day for theoretical research and practice.

He is like a thirsty sponge. He madly absorbs all kinds of knowledge in his notes. Even if he was almost interrupted by the irritable earth element several times, he did not retreat. Instead, he learned a lot of experience from it. Each call made an obvious step forward than the last time.

In just two days, he has been able to control the summoned elements for more than a minute.

The only problem is that with the extension of control time, the resistance of elements will increase exponentially with each order. The stronger their strength is, the faster they break free.

According to the description in the note, the best solution is to forcibly pull an element out of its world through temptation, and then imprison it in a soul diamond.

In this way, when the mage calls again, it will be the same element.

Moreover, because the connection with the element world is cut off, the element can no longer obtain power from it, and it is naturally impossible to break away from control, but the disadvantage is that the mage, as the summoner, must use his own magic to provide energy for the element.

After considering the pros and cons, Zhang Cheng decisively chose to accept the suggestions given in the notes and prepared to capture one of the four elements of fire, water, soil and wind respectively.

After all, he will leave the world sooner or later. After returning, the ghost knows whether there is elemental life, so it\'s better to be insured in advance.

Do what you say!

Seducing elements is not an easy thing.

First, it is necessary to get something that they can not refuse, such as the essence of water, the essence of air, the essence of the earth and the essence of fire.

Second, in order to prevent elements from escaping, it is also essential to imprison the Dharma array.

Third, and most importantly, the mage must know the name of the summoned element, otherwise he cannot complete the imprisonment ceremony.

Because there are so many things needed, Zhang Cheng directly purchased a full set of materials from the material manager of the kenrito Parliament at a high price, spent 50 gold coins, followed by hiring three senior apprentices to help him complete the confinement array in the basement, and finally copied the names of four elements equivalent to his strength by reading those ancient books in the library.

It\'s been a week since we finished all the preparations.

During this period, he also took time to prepare a large number of primary treatment potions, at least thousands of bottles.

As one of the most basic magic potions in alchemy, the ingredients of the primary healing potion are very few. Only silver leaf grass and Ningshen flower are needed. The process is even simpler. Keep the temperature of the solution, slowly add the chopped herbs, and activate the spell after the potion turns red.

Perhaps in the game, no matter what medicine it is, it has to be prepared slowly bottle by bottle, but in reality, it is completely possible to enlarge the amount of containers and herbs according to the proportion, make a large pot at one time, and finally put it into the bottle.

Of course, not everyone can use this method, especially the control of herbal medicine concentration and solution temperature. A little mistake will lead to disastrous consequences.

The reason why Zhang Cheng dares to do so is thanks to the knowledge and experience instilled in his mind.

He doesn\'t even need to think and calculate. He can judge the temperature of the solution with the naked eye. Is it more silverleaf grass or more ningshenhua.

The businessman who had just returned to Dalaran from the outside happened to see a mountain of medicine bottles in the house. The whole person fell into ecstasy and shouted excitedly: "holy light! My holy light! It\'s incredible! I\'ve only been away for a week, and you... You have prepared so many therapeutic potions?"

"Don\'t get excited, dear old George. They are just the most primary therapeutic potions. They can\'t heal the wound in just a few seconds like advanced therapeutic potions, and can pull the seriously injured back from the death line at most." Zhang Cheng rubbed his dry eyes and showed a tired expression on his face.

As early as the first bottle of primary treatment medicine was made, he couldn\'t wait to buy several rabbits to test the effect. He found that the greatest use of this thing was hemostasis.

No matter how serious internal and external injuries, as long as a bottle goes down, the blood will stop immediately. As for when it can heal and recover, it depends on the constitution of the injured person.

"No! No! No! You don\'t understand! What the army wants is this kind of cheap primary treatment potion that can save lives at critical moments. Generally speaking, every formed army is usually equipped with priests or doctors who are specially responsible for treating the wounded. As long as the soldiers are alive after the battle, they can be cured soon."

As he explained, old George took out his tied dagger and gently scratched it on his wrist. Scarlet blood suddenly came out of the split skin and trickled down his fingers to the ground.

Without any hesitation, he quickly pulled out the cork and poured down one of the bottles of potions.

In less than three or five seconds, the wound immediately stopped bleeding and healed slowly with the naked eye, leaving only a shallow scar.

"Great! There is no problem with the efficacy! I can venture to ask, how did you do it? As far as I know, most alchemists can make 50 bottles of medicine a day, which is a great achievement. But compared with you, they are like crawling snails." old George\'s eyes flickered greedy and carefully explored.

As a businessman pursuing interests, he looks at Zhang Cheng as if he is looking at an inexhaustible gold mine.

"Oh, sorry, this is my little secret. I also hope you can keep it a secret, can you?" Zhang Cheng asked with a smile.

"I see! I swear I will keep this secret for you." old George nodded his head without thinking and said in a bad tone: "In addition, I have a small request. Since you have prepared so many primary treatment drugs at one time, I don\'t have enough cash. I don\'t know whether I can charge first or use other goods?"

"Yes! Tell me how much you\'re going to charge and what you\'re going to use to pay?" Zhang Cheng casually found a chair to sit down and opened the package he just got.

In addition to a large number of herbal seeds and a book called a guide to herbal cultivation - written by the cenario Council, there is also a cloth bag full of moss and black soil weighing nearly ten kilograms