Sun Tu didn't know that he had been hit by a big pie, and at this time his heart was extremely excited, because the eight experience harvesters were giving him a lot of experience.

Sun Tu used all the energy points to cast elemental ammunition in one go, and made 35 fire elemental magic energy stones at one time and distributed them to the eight people who were eager to try

Since having the fire element magic stone provided by Sun Tu, the eight people decisively gave up their ability attacks, turned into blasters, and experienced the art of explosion.

The effect of the eight-person salvo was comparable to carpet bombing, a large number of skeletons were submerged by the explosion, and Sun Tu made a fortune in a muffled voice, and there was a great harvest of experience and items.

After only ten minutes, Sun Tu was upgraded, and after level 10, the upgrade not only increased the full attribute and free attribute points by two points each, but also increased the energy points by ten points.

The most important thing is that the upgrade allows Sun Tu to experience the thrill of resurrection with full blood, and the energy points that were already about to bottom out are instantly full.

"Ding, release the promotion task, 1, kill one hundred yellow-level skeletons and ten Xuan-level skeletons alone, obtain a Xuan-level bone essence and a complete Xuan-level soul fire, 2, four professional skills will be upgraded to lv3, and the host's strength will be increased to Xuan-level after the task is completed."

"Ding, the level is locked, the host level cannot be increased before the task is completed, and all the experience gained from killing monsters is converted into skill proficiency, and the host can choose to improve his skills." The system's prompt sounded a little abruptly.

"This is the rhythm of taking off, and sure enough, the battlefield is the most suitable for the upgrade stream, and it will only be broken through in a few hours, and it is this promotion task that greatly limits the upgrade speed, for example, it may be able to be upgraded to the ground level after seven days." Sun Tu muttered to himself.

The system has a space that can only store loot, which is like an in-game backpack, divided into twenty small slots, and the same item can be stacked up to 999.

Only two of the twenty slots have items, namely 96 yellow-level bone essences and 469 yellow-level soul fragments, which are Sun Tu's harvest after he went to the battlefield.

Sun Tu found that there were three options under the grid, which were finishing, compositing, and smashing.

Sun Tu tried to click on the synthesis option, and suddenly a black furnace with a flame popped up, and the items that could be crafted were marked below.

Ten soul fragments can be combined into a complete soul, and three bone essences can be combined into one bone crystal.

"It's still a bit intelligent, but why don't you have a Xuan-level material, nine people together can kill not a hundred or eighty Xuan-level skeletons, it seems that this promotion task is not so easy to complete."

"Alas, it's not easy to brush the proficiency of the four skill professional skills to lv3, maybe this is the price of choosing the four professions, fortunately, the experience points can be converted into skill proficiency, otherwise I really don't know how to improve the level of self-detonation spiders and gun fighting skills." Sun Tu thought secretly.

The anti-materiel sniper rifle is a heavy weapon, and every shot of heavy weapon mastery can increase proficiency by 5-10, and now this skill is not far from lv2.

Fortunately, it is a battle on the front line, so you don't have to worry about it as a magic energy stone, otherwise it will be a lot of money to spend magic energy stones just by brushing skill proficiency.

"I'm rubbing, this is too pitiful, a hundred points of experience are converted into a little proficiency, can't the system come out and give some explanation?" Sun Tu knew that it was impossible to convert a little experience into a little proficiency, but he didn't expect it to be one hundred to one.

The system simply didn't pay attention to what he meant, or that it didn't have the ability to answer questions at all.

"Count you ruthless." Sun Tu gritted his teeth and said, who let the other party be a golden finger, even if it is set to one thousand to one, he can only endure it,

Full of anger was vented on the skeletons, Sun Tu kept pulling the trigger, and a series of fiery red beams erupted from the muzzle of the gun, and dense explosions sounded in the skeleton group.

The energy in the magic energy stone was consumed in less than a minute, and Sun Tu, who was not short of energy, immediately replaced it with a magic energy stone with the fire element attached to it, and continued to pour firepower.

"Damn, what kind of stimulation did Brother Sun have, why did he suddenly become so fierce." Li Dasheng on the side couldn't help but show surprise.

"Who knows, maybe you want to be number one, you don't want to hold the team back." Lin Sheng replied.

"Hehe, with Brother Sun's ability, which team can kill more skeletons than us, that is, Brother Sun's energy can only recover slowly." Li Dasheng said with some regret.

"Don't be foolish, take advantage of the fact that the strength of the skeletons is not strong in the morning, killing more skeletons is the right thing, and in the afternoon it will not be as easy as it is now." Tan Wen interjected.

"Captain, can you give me two Fire Elemental Magic Energy Stones?" Sun Tu only provided more than thirty magic energy stones, Luo Yiyi alone got ten, and the remaining seven people each got three, and it only took three minutes to fire with all his strength.

"I only have the last one left, Luo Yiyi still has a few more, or you go to her and ask for it." Tan Wen replied.

Li Dasheng looked at Luo Yiyi, who was shooting excitedly, and thought about how high the possibility of the magic energy stone from her was.

"Don't think about it, it's definitely boring to ask her for a magic energy stone at this time." A basin of cold water directly extinguished Li Dasheng's idea of asking for a magic energy stone.

"You can find Brother Sun, you see that he consumed one in less than a minute, presumably there should be a lot of stock." Lin Sheng instigated, in fact, his Fire Element Demon Energy Stone was gone, but he had taken the high-quality magic energy potion, and now he was embarrassed to ask Sun Tu for it.

"Forget it, Brother Sun has already given me a lot, I'm embarrassed to ask him again." Li Dasheng said.

"You've given him all the high-quality magic potions worth 200,000 credits, so don't ask for a few more." Lin Sheng continued.

"The high-quality magic energy potion is Luo Yiyi's, I'd better fight the skeleton honestly, with the strength of our team, the first place is definitely nine out of ten." After Li Dasheng finished speaking, he continued to shoot and kill the skeleton.

"Don't you want to get a spot on the Deathwing Training? This is a once-in-a-lifetime opportunity. Lin Sheng changed his strategy.

"Do you think it is possible to select ten people from nearly 60,000 people in five military academies, with strength like me, at least at the level of the captain, I still want to be a salted fish, and when I graduate, I will go home to inherit tens of billions of assets and be a leisurely little boss." Li Dasheng said that I just want to be a salted fish without dreams, and what Deathwing's special training quota has nothing to do with me.

"Lin Sheng, don't make a small calculation, do you think that relying on Sun Tu's ability, you can get a special training quota by killing more skeletons, I'm afraid you think too much, if it's really that easy, wouldn't it be easier to buy a magic cannon?" Song Shuai saw through Lin Sheng's careful thinking at a glance.