Now Ye Feiyu finally had a clue. The products in this time and space store had nothing to do with his colonist level, but changed according to the source crystal he owned.

In addition to the random bloody battle flags of new products in the military category, there are three other products, namely inferior energy shields, second-level animal taming liquid and second-level amulets.

Low-quality energy protection shield: a special commodity owned by the first generation of space-time instruments, an annihilated level five civilization plane, a broken shield created to adapt to the survival of low-level planes. The actual civilization level is three, with very few remaining amounts, with 300 energy protection power, and can be recharged and reused.

Level 2 animal taming liquid: The animal taming liquid developed by level 5 civilization, the actual civilization level is level 2, the usage method is mixed with the colonist's own blood and injected into the organism, which will work on creatures with an intelligence index below 100 and a strength level no more than 2.

Level 2 protection talisman: a one-time consumption amulet, a product of level 6 civilization, a level 2, and has about 600 energy protection.

What Ye Feiyu is most worried about now is safety issues. Whether it is trading with Indians, dealing with Europeans, or selling sand, fur, buying guns, etc., it may be life-threatening. Now, any protective shields and amulets appear in the space-time store, it is naturally a product that must be purchased.

He looked at it and found that these two products were not as deceptive as the Bloody Battle Flag. Not only did they have no time limit, but the price was much cheaper. A inferior energy shield required seventeen primary source crystals, and a second-level amulet only had five primary source crystals.

Ye Feiyu didn't know what the so-called three hundred energy protection is, but since it is an item made by a level 5 civilization, its protection is definitely not much worse. Just like the AK47 made from the third-level plane of the Earth. Although it is only considered a second-level item, it is already an incredibly powerful advanced weapon for people in the first-level plane.

He thought for a moment and bought the inferior energy shield and second-level amulet. Although the number of primary source crystals fell back to double digits and could not buy the third-level bloody battle flag, there was still one month left, so it would be no problem to increase the number of source crystals. At worst, it would be possible to sell the remaining gold and fur.

The second-level animal taming liquid is worth two source crystals, and it seems to have a lot of effect. Now Ye Feiyu's overall strength is not strong. Taming one or two fierce beasts with him can also increase his combat power, but he is not in a hurry to buy it.

The other three categories of the Time and Space Store, the life category option, appear in two products: Level 1 nutritional solution and pure water.

A unit of first-level nutrient solution has ten energy degrees of calories, and the price is zero point one source crystal, and the price of one ton of pure water is also zero point one source crystal. It is really bad.

However, this is all for emergency response, and the possibility of purchasing is not high. Ye Feiyu prepared a lot of food and water in his private space.

New products have also appeared in the evolution category: the second-level Fiery Wind Leopard strengthening gene stock solution can improve the overall quality, but it is invalid for organisms with strength exceeding the third-level civilization standards. The second-level turkey essence can improve the affinity of the colonists' fire attribute energy, and is suitable for practicing fire-type magic, immortal arts, superpowers and other living organisms, and are also invalid for organisms with strength exceeding the third-level civilization standards.

In the auction category, no items appear as before.

I bought the second-level Fiery Wind Leopard strengthening gene stock solution. Although I spent ten primary source crystals, it was worth it. After injecting the stock solution into my body, Ye Feiyu felt that her body was hot and hot, like a high fever. Soon after, she calmed down. Sure enough, the quality of all aspects of the body improved a lot, including strength, reaction, vision, etc., and even felt sensitive.

The inferior energy protective shield looks a bit like a flat turtle shell, which is light and not known what material it is made of. There are more than a dozen prism patterns on the turtle shell. The shield is attached to the chest and abdomen. Press the activation password according to the prompt order, and the function of the protective shield is activated. A transparent and soft protective film covers Ye Feiyu close to the body, and nothing is affected to breathe. It is worthy of being a self-defense object produced by level 5 civilization.

The second-level amulet is even simpler to use. Just carry it with you close to your body. Once you encounter an external force that can hurt the wearer, it will automatically be activated. Ye Feiyu naturally doesn't understand the specific principle, but he can guess that this is amulet created by the plane of immortal arts and civilization.

A total of 32 primary source crystals were spent, which made Ye Feiyu feel very distressed, but it was also considered a bird gun replacement, and his own safety was finally guaranteed.

Although he was able to buy the third-level bloody battle flag and delay entering the bloody battlefield by one year, it became increasingly urgent to increase the number of source crystals and increase his strength as soon as possible.

Ye Feiyu originally did not intend to enter the third-level Tyrannosaurus plane so soon - this plane numbered KN237 is because of the key of the Tyrannosaurus tooth plane, and Ye Feiyu conveniently named it as the Tyrannosaurus plane. Now, because of the bloody battlefield mission on the plane, it has to be put on the agenda.

Because of the suppression of plane power, too high-level technological items are not reliable, and improving one's own strength is the most important thing.

The three tasks of the Tyrannosaurus plane not only obtain a lot of source crystals, but also have a level one enhancement qualification. Since this qualification can appear in such a level three-plane task, it will definitely improve one's own quality more than injecting the second-level Liefeng Leopard strengthening gene stock solution. This is what Ye Feiyu values ​​the most. In order to survive on the bloody battlefield, he had to venture to the Tyrannosaurus plane.

Ye Feiyu must figure out the new concept of being able to achieve success. The only way is to test the real protection of the inferior energy shield.

It's amazing. Although Ye Feiyu felt that her body was covered with an energy protective film, when she touched something, she couldn't feel anything blocking it, and the energy protective film seemed to no longer exist.

He took down the amulet, then gently cut the palm of his hand with a knife, and was shocked to find that a small hole had been cut in the palm of his hand, and this inferior energy shield did not work at all!

"So bad? What's going on?" Ye Feiyu thought for a moment in surprise, and then shouted in the grizzly tribe warrior guarding outside the tent, "You go and find a living deer for me."

The inferior energy shield is effective for humans, and it is definitely the same for other creatures. Ye Feiyu couldn't help but regret releasing all the captives of the Europeans, otherwise he could use them as test subjects now. Letting the people of the Grizzly Tribe go out to catch hostile tribes like cannibal warriors come back, which is more troublesome, so just use the live deer as an experiment.

Indians hunt wild beasts, as the name suggests, were to capture wild beasts that were not very dangerous, such as hares, reindeer, etc., and would use lasso to catch them and keep them to store food. Soon a reindeer weighing two or three hundred pounds was led to Ye Feiyu's tent by two grizzly bear tribe warriors.

Tied the reindeer to the wooden post in the tent, two grizzly tribe soldiers bowed and left the tent. Ye Feiyu then took off the energy shield, put it on the reindeer, activated the shield, his face sank slightly, and a sharp machete appeared in his hand, and he swung his wrist and chopped it hard on the back!

After injecting the second-level Fierce Wind Leopard strengthening gene stock solution, Ye Feiyu's strength increased a lot. Although no specific data was tested, it was definitely more than 100 kilograms. Even if it was suppressed by the plane force, it was not comparable to ordinary Indians.

Even an eagle warrior like Blusman, who used to be able to lift Ye Feiyu with one hand, can only bow down to his superiors under Ye Feiyu's power.

The knife was slashed out, and it actually brought out a whirring sound of wind, which was extremely sharp and slashed on the back of the reindeer, but Ye Feiyu was surprised. An extremely tough barrier appeared on the reindeer's body, and it actually bounced back his machete, making his arms numb, which was completely different from the one he had just cut his palm with a knife!

The chopped reindeer probably had no pain. She raised her round eyes and looked at Ye Feiyu blankly, not knowing what kind of demon moth this strange creature was making.

"It's true." Ye Feiyu murmured, then gently placed the blade of the machete on the reindeer's back, pulled it hard, and cut a large wound on the reindeer's back.

"It turns out that this energy shield can only work if it encounters a powerful and rapid blow. It seems that it can only be used to defend against sudden attacks from the enemy. It is a inferior product. I wonder what a high-quality energy shield is like?"

Of course, he could only think about it. It really has a high-quality energy protection shield, and it is also a level five civilization level. It is impossible to bring it here to use it. It is hard to say whether his current source crystal can be bought.

The actual use of the energy protection shield was tested. After Ye Feiyu ignored the reindeer who was jumping and struggling due to the pain, he took out the AK47 and fired three shots at the reindeer at close range. Then he broke the reindeer's energy shield and shot the reindeer.

It has a low-quality energy shield with 300 energy levels, which can defend against two AK47 shootings, plus amulets, which have 600 energy levels, but can only be used once, and can withstand three fatal attacks in total. If you encounter multiple people shooting at the same time, it is still dangerous.

However, this possibility is very rare. Even if someone really wants to deal with him, he will not think of this. At most, he will take the time to fire a cold gun, and the remaining time is enough for him to open the plane passage and escape. It is estimated that even an ordinary cannon would not be able to shoot Ye Feiyu, who has a total of 900 protective power.

The energy value of the high-quality energy shield has indeed become zero, and it is easy to replenish energy. Only three primary source crystals are needed. It seems that one primary source crystal is equivalent to one hundred energy levels, but only a secondary amulet with six hundred energy levels requires only five primary source crystals? Ye Feiyu couldn't figure out why.

In terms of conversion, the primary source crystal worth ten kilograms of gold can offset Ye Feiyu a fatal blow, which is equivalent to buying a life of ten kilograms of gold. It is really cost-effective. This inferior energy protection shield is definitely an extremely precious treasure for people in the third-level plane.

The special description of the special products owned by the first generation of space-time instruments also makes Ye Feiyu a little strange. Could it be that other more advanced and advanced space-time instruments do not have such incomplete products for sale?

***
Chapter completed!