Doomsday: It’s not too much for me to hoard a strategic reserve

"Source crystal detected, is the transaction exchanged for contribution points?"

Xia Yang refused without thinking: "No deal!" "

I don't have enough of myself! You still want me to exchange source crystals for contribution points?

Want to fart?

Xia Yang said as he slashed the abdomen of the source beast with an alloy dagger.

The source crystal is on the left side of the abdomen of the source beast, roughly equivalent to the position of the human waist.

The source animal skin is rough and thick, even if it is already dead, it is quite difficult to cut its skin.

But the A-grade alloy dagger can easily cut it.

Xia Yang felt that he basically didn't need to push too hard, and he opened a large hole in the abdomen of the source beast.

This dagger is still a quack artifact!

With it, it will be much more convenient for Xia Yang to receive the source crystal.

Ness!

Xia Yang was reborn back, but he was determined to be a maniac!

In his previous life, Xia Yang had also received Yuan Jing more than once, and now he was assisted by a sharp A-grade alloy dagger, so he was also familiar with the road.

A moment later, Xia Yang took out a teardrop-shaped crystal the size of a pigeon's egg from the abdomen of the source beast.

This crystal is crystal clear, like a diamond.

Although it was taken out from the bloody source beast's abdomen, there was not a trace of blood on this source crystal.

Xia Yang endured the excitement in his heart and collected this source crystal into the dimensional space.

Then he walked to another source beast corpse and concocted it as he did.

Two source crystals were taken into his pocket.

The corpse of the source beast was also put away again by Xia Yang.

Source beast meat also has a certain help for the supernatural, which can improve and strengthen the physique.

It's just that the effect is relatively small, and compared with the effect of the source crystal, it is a world of difference.

At this time, the mechanical sound of the system sounded again.

"When the host is detected to obtain the source crystal, the mobile survival base open source crystal processing module, the host can view and redeem it on the system interface."

Xia Yang was a little curious when he heard this, and immediately summoned the main interface of the system.

Sure enough, a redemption option has been added, called "Grade D Source Crystal Processing Module".

In the remarks column, Xia Yang saw the functional description of this module.

The module can be installed to detect the properties of the source crystal, purify impurities and other treatments.

There is also a line of small print below.

Note: The D-level module can only process D-grade source crystals, and the module needs to be upgraded first.

Xia Yang suddenly became excited.

The two major functions of the source crystal module are not difficult to understand literally.

Especially Xia Yang experienced the end of his previous life and knew Yuanjing very well.

So as soon as he saw these two functions, his eyes lit up.

Attribute detection, as the name implies, is to detect the properties of the source crystal.

Source crystals are divided into different attributes, including strength attributes, element attributes, spirit attributes, and some special attributes.

Further down can also be subdivided, for example, among the element attributes, there are common gold, wood, water, fire and earth, and other rare element attributes, such as wind and thunder.

Special attributes are relatively rare, and Xia Yang's dimensional space belongs to one of the special attributes.

Source crystals can help humans awaken their powers, and those who have powers can take source crystals and increase their level of powers.

But all the source crystals are exactly the same in appearance, and they don't know what the properties are.

Later, some scientists developed a method of detecting the properties of the source crystal.

Before that, everyone took the source crystal to awaken the power, and it was all luck.

In the previous life, Xia Yang's dimensional space energy was opened by opening a blind box.

If the properties of the source crystal can be directly detected, then Xia Yang can take it selectively to improve his strength.

Source crystals that cannot be used temporarily can also be saved and exchanged with others later.

In fact, after human scientists developed the detection method of source crystal, the exchange of source crystal has also been very popular among the supernatural.

If Xia Yang has convenient detection methods now, it is equivalent to a huge advantage in time.

As for another major function - impurity purification, it is even more powerful.

Although the source crystal looks crystal clear, it actually contains some impurities.

If the impurities are not removed and the source crystal is taken directly, there will be various side effects.

Ordinary people take Yuanjing, and even have a certain probability of dying violently due to side effects.

If the supernatural person takes it, the possibility of death from side effects is extremely low, but there will almost certainly be various side effects, but they are not that serious.

Some will fall into a state of weakness and fatigue, lasting from half an hour to two days.

Some will have a high fever that will not go away.

Some may also experience temporary blindness.

Most side effects disappear after two or three days.

But there is also a certain probability that it will cause irreversible permanent damage to the body.

The severity of side effects is also like opening a blind box.

Later, human beings invented the means of extracting the energy of the source crystal, extracting the energy in the source crystal and making a potion similar to the gene evolution liquid.

There are no side effects, but this method will lead to the loss of source crystal energy.

Basically, if a source crystal is made into an energy liquid, it can only preserve six or seven percent of the energy.

This is a great waste.

In Xia Yang's previous life, half a year after entering the last world, human superpowers basically took energy liquid to improve their strength.

It's wasteful, but it's safe.

If the source crystal module of the mobile survival base can directly purify the impurities in the source crystal, then Xia Yang's advantage is too great.

This module must be upgraded!

Xia Yang looked at the price column: 200 contribution points.

He was suddenly unable to complain, the system is really a profiteer!

It's actually twice as expensive as a tracked device!

He finally got an additional 100 contribution points by killing the source beast first, and with the previous accumulation, the total contribution points were only 203.

Is this price aimed at his wallet?

Spit is complaining, this contribution point still has to be spent.

Xia Yang chose to upgrade.

Unsurprisingly, in addition to consuming 200 contribution points, the system also asked Xia Yang to provide a batch of ore materials.

Xia Yang's heart moved slightly, and asked: "System, I have some alloy materials, can I offset some of the ore?"

He thought of the set of discarded alloy springs and mechanisms in the trap outside.

With a waste mindset, he tried to inquire.

Unexpectedly, the system really agreed.

"Ask the host to provide alloy materials, and after testing, a part of the ore material can be deducted."

It's really good! When Xia Yang heard this, he immediately ran outside the bomb shelter.

He is afraid that the system will repent....

Xia Yang came to the warehouse, jumped into the trap, and put away those alloy materials.

After returning to the bomb shelter, Xia Yang took out all the damaged alloy parts.

As for those intact alloy javelins, Xia Yang naturally saved them for next time.

"System, you check it! How much can these materials be deducted? Xia Yang asked.

After a few moments, the system said: "The alloy provided by the host can offset 80% of the material." The host also needs to provide..." The

system reported a list of materials, which was a lot less than the first report.

It seems that some metal materials and the like can be collected in the future, and they can be used when upgrading the mobile survival base.

Picking up waste is also a promising career!

Xia Yang briskly took out the ore materials from the reserve of war-ready materials.

The light shrouded the Flaming Sun.

Upgrade begins!