Global Catastrophe: I Am Cultivating Immortals in the Refuge

　　 "System, I choose to buy these four formations!" Chen Nuo didn't think much, so he bought these four formations directly.

　　 After all, he had already decided in the past few days that as long as he had enough upgrade points, he would definitely buy a formation.

　　 You know, the lethality of these formations is hundreds or thousands of times stronger than that of unmanned fighter jets!

　　 "Ding, you spent four hundred upgrade points to buy the White Tiger Killing Array, Azure Dragon Killing Array, Vermilion Killing Array, Xuanwu Killing Array!"

　　 "Warm reminder, you can use 500 upgrade points again to evolve the four elements into four elements!"

　　 With the prompt sound of the system, four discs and 16 small flags suddenly appeared on the desktop in front of Chen Nuo.

　　 The four discs are divided into green, white, red, and blue.

　　 They face the opposite formation.

　　 And the small flag of sixteen shots corresponds to a disc in the color of every four shots.

　　 These are some of the materials for the formation.

　　 Now, as long as Chen Nuo inserts these small flags in a certain place, and then activates the disc with blood and spiritual power, the formation will start.

　　 However, what surprised Chen Nuo was the prompt sound of the system that allowed the four formations to be merged into the four image formations.

　　 "That is to say, if I purchase these four formations and use 500 upgrade points to upgrade them, they can evolve into a four-elephant formation?" Chen Nuo couldn't help but ponder.

The meaning of 　　 is very simple. If you purchase these four formations and then upgrade them, it will be a hundred upgrade points cheaper than directly purchasing the Four Elephants.

　　 This is very good.

　　 "However, although the power of the Four Elephant Formation is powerful, its range is definitely not greater than these four formations. If it is not necessary, there is no need to upgrade it for the time being."

　　 whispered for a moment, Chen Nuo began to browse the rules of the formation.

The way to cast the formation is very simple. You need to insert the flag in the place you specify, and then drop the blood of the caster into the core of the formation (that is, the disc) within the flag range, and then inject spiritual power to make the formation. Just run it!

The method of using 　　 is very simple, but the only thing that makes Chen Nuo feel bitter is that the arrangement of the formation requires the caster to use the disc to start the formation within the formation.

　　In other words, if you want to set up a formation, then Chen Nuo must go out!

　　 In this way, it also disrupted his original idea of ​​using an unmanned reconnaissance aircraft to arrange the formation.

　　 This made his brows furrowed.

　　 I knew this a long time ago, I should have learned how to use the formation earlier...

　　 He couldn't help but sigh in his heart.

　　 But, although he was moved, he didn't think much about it after another thought.

　　 After all, he was busy upgrading the refuge, scientific research base and cultivation before, how could he want so much?

　　 "It seems that I have to go for a trip." He started to make some preparations while hesitating.

　　 lists such as how to attract those earth-core beasts.

　　 After all, it must be impossible for him to go to a place with many earth-core beasts this time.

　　 Therefore, after setting up the formation, he definitely needs to introduce those earth core beasts.

　　Although he had thought of using living humans to seduce these earth-core beasts before, as far as the current situation is concerned, can those earth-core beasts keep themselves alive?

　　 So, he began to browse the video playback of the previous unmanned reconnaissance aircraft, looking for a way.

　　 Fortunately, after the video playback, he quickly found a way.

　　Because after the disaster last night, the government began to let speakers across the country broadcast recordings of letting survivors enter shelters in various cities.

　　 For this reason, Chen Nuo happened to discover in the video that these earth-core beasts were actually angry because of the sound of the speakers and attacked those speakers.

　　 It was this discovery that gave Chen Nuo an idea.

　　 It's just that when this thought appeared, Chen Nuo was instantly troubled.

　　 That is, because of the rampant destruction of the earth core beasts, many lines are destroyed. If the horn is used, then there is no power to maintain it, and it is naturally impossible to operate.

　　 Chen Nuo couldn't help frowning.

　　 "I don't know if the scientific research base can produce speakers that don't need electricity to maintain and can be played for a long time." With deep thoughts, he has already arrived at the scientific research base.

　　 "Scientific research, with your current technology, can you make a speaker that does not require electricity to maintain and can still play recordings?"

　　 Chen Nuo is straight to the point, without any muddle-headedness.

　　 Soon, almost without any stop, a light curtain appeared on the center console, and then, the sound of scientific research came:

　　 "Yes, this solar horn can be made with only 0.1 jin of copper and 1 jin of iron! It does not need to be connected to the circuit to operate, as long as it is exposed to the sun, it can be used!"

　　 Hearing this, Chen Nuo glanced at the speaker model on the light curtain.

　　 This speaker is almost the same as an ordinary speaker, except that there is a small solar energy conversion device on the speaker's main unit.

　　 Seeing this, Chen Nuo couldn't help smiling.

　　 There are very few materials needed, and I just need it now, not bad.

　　 After thinking about it, Chen Nuodang even ordered:

　　 "Make me four of these speakers... By the way, make me an extra cannonball pistol and ammunition for the cannonball pistol!"

　　Utter words~www.wuxiahere.com~ With the operation of the robotic arm, Chen Nuo couldn’t help asking: “How long does it take to make what I need?”

　　 "Two hours!" The scientific research answer was quick and accurate.

　　 Chen Nuo nodded, and then began to think about what he needed after going out.

　　 There are guns and horns, except for weapons and protective clothing, everything else is basically prepared.

　　 "Scientific research, bring up the weapons and protective clothing you can make." Thinking of this, Chen Nuo said.

　　 On the center console, the light curtain reappeared.

　　 Nano Light Knife: The handle is made of iron, and the blade is made of nano particles. It is a hundred times stronger than ordinary knives and extremely sharp! It takes 5 catties of iron and ten energy spars to make!

　　 Mechanical glove: A glove that can greatly increase the power of the user's fist. Its attack power can even easily destroy a wall with a thickness of ten centimeters! It takes 50 catties of iron, five catties of copper, and ten energy spars to make!

　　……

　　 Combat uniform: suitable for combat, light and easy to use, after wearing it, it can greatly enhance the user's agility! It takes 5 pounds of silk to make, an energy spar!

　　 Body armor: It can withstand a shot of a shotgun. It takes 10 catties of silk and one catty of iron to make!

　　Mecha suit: Made of steel, it can easily resist bullets from any firearm. The only weakness is its bulkiness! It takes fifty catties of iron, one catty of copper, and one energy spar to make!

　　……

　　 Looking at these items, Chen Nuo finally chose to make a battle suit and a light knife and mechanical gloves.

The 　　 battle suit is to enhance one's agility and is used to escape, while the light knife is because of his swordsmanship.

　　 As for the mechanical glove, Chen Nuo was surprised by the power of this glove, so he chose to make one.