Alone in the room, there was a pile of crystal nuclei in front of him. Each crystal nucleus glows red under the light, which is a second-level crystal nucleus, crystal clear, if it is placed before the end of the world, I am afraid it is a great treasure.

It's just that at that time, who would know that this was born from the end of the world and was the product of a mutant pig?

17 second-order crystal nuclei are seventeen mutant pigs. It's scary to think about!

However, Li Yi is now excited, and he can't bear the excitement!

Excitedly, he reached out to the crystal nucleus......

"Ding, discover the energy body, is it converted into points?"

"Yes/No?"

"Ding, find the energy body, do you absorb it?"

"Yes/No?"

The two voices sounded almost at the same time, and I didn't feel anything if I didn't pay attention to it on weekdays, but now I feel different.

Taking a deep breath, Li Yi chose to absorb it, and the crystal nucleus in his hand instantly turned into powder.

One ends, and the next one. With a beginning, it seems that there is no end. Li Yi shot again and again, and the crystal nuclei turned into powder in an instant, and in the blink of an eye, all 17 crystal nuclei were absorbed.

Of course, in order for the system to be upgraded to level 4, 17 second-level crystal nuclei alone are not enough, and a large number of first-level crystal nuclei are also needed......

"Ding, the system upgrade experience has arrived, and the system can be upgraded!"

"Ding, the system is starting to upgrade, this upgrade will take 12 hours, please be patient."

……

12 hours is not long, but it is not short. But Li Yi finally waited for that pleasant prompt sound......

"Ding, the system upgrade is complete!"

Hearing this, Li Yi immediately turned on the system!

The first thing that catches the eye is the main interface, and there is no change in the main interface, which is expected by Li Yi, and now he doesn't expect new functions to appear, and even he guesses that the system only has these functions. Of course, it doesn't mean that these features are necessarily available, maybe it's just that you haven't found the opportunity to turn them on.

Li Yi went straight to the mall, and now the foundation that makes him stand on the ground, if you want to say, it is the system mall, so Li Yi is most concerned about the changes in the mall.

The first column of the mall, the weapon slot. Skipping the familiar items in front, Li Yi pulled directly to the bottom.

Thundering Knife: Has a chance to produce a thunderous roar when used, and has a paralyzing effect on mutated animals. Price – 100 points!

What caught his eye was a long-term weapon, and Li Yi was a little shocked. With the evolution and development of mutant animals, the saber has become useless. If it weren't for the fact that Li Yi didn't have other weapons to use, he wouldn't have used them all the time.

There is one, and there is more than one, and there is more than one, and it can be purchased in large quantities.

If the system is really wise, it knows what it lacks and what it comes from!

Li Yi thought happily!

But then he couldn't be happy, because he found out......

There is only one new item in the weapon slot in the mall, which has made Li Yi uncomfortable these days, although he is easier to upgrade this time, but he can't let his rewards be less because of this.

With an extremely depressed mood and nowhere to cry out for grievances, Li Yi moved to the prop column.

As Li Yi expected, the new items in the inventory are really talismans. Li Yi was a little helpless, if he continued like this, he would really become a descendant of Taoism.

The three talismans that catch the eye are:

Thunder Talisman: After use, it will turn into a bolt of thunder and fly towards the enemy, the price is - 1000 gold!

The introduction is simple, but Li Yi can imagine its power, which was definitely stronger than the water dragon talisman and the fire dragon talisman before. The power of thunder, how can it be underestimated? And it makes sense that people dare to sell 1,000 gold coins, and this system will not pit.

Seal: After being used, you can seal the enemy's strength, and you will not be able to use special abilities. Price - 1500 gold!

This thing is also amazing, it can even seal others. And the special power mentioned above must be the mutated ability, whether it is for the ability or the mutant beast, it is effective.

Think about how appalling it would be to seal a paranormal or a mutant animal and turn him into an ordinary person or an ordinary animal.

Li Yi values its ability to deal with the supernatural person more important, with this talisman in hand, which supernatural person would dare to be his enemy? That's the rhythm of looking for death!

Vajra Talisman: After use, attacks within level 3 are invalid, unable to break through the body, and the time limit is half an hour. Price - 2000 gold!

After reading it at first glance, Li Yi felt that this vajra talisman was not as good as the previous two talismans. I'm even more sorry for its price of 2,000 gold coins, but when I think about it later, I think very differently.

Half an hour of physical invincibility, but this is only defense. In this half hour, you can still attack, and under the attack after leaving the defense, it is a deadly play, who can stand it?

Three talismans, the effect is good. It's worth the upgrade reward, but the inventory doesn't end there, and there is still an item under these three runes.

Guardian Bell!

The name is called the life-guarding bell, and the shape is also like the bell that the monk temple hits every day, looking at its name, it should be used to save life, Li Yi can't help but guess: Could it be that this life-guarding bell will suddenly appear when encountering danger, and then cover itself?

Guardian Bell: Blocks a critical damage, can only be purchased once, and will disappear if not purchased within 24 hours. Price – 1000 points!

This shows that Li Yi can't help but think of stand-in dolls, speaking of stand-in dolls, they are also a one-time purchase, and they disappear after buying, and they are not allowed to be purchased. I couldn't even see the options, if it weren't for the fact that the stand-in puppet was still lying in the backpack, Li Yi would have thought it was an illusion.

So far, there is no danger to life, and this stand-in doll still exists. At present, this life-guarding bell and stand-in puppets have similarities, and it is said that Li Yi can do it or not. But who has too many life-saving things? What's more, this only costs 1000 points, and now the points are just like the gold coins in the past, and it only takes time to get them.

After purchasing the life guard, Li Yi went to tidy up the backpack, so that the stand-in puppet and the life guard lie side by side in the backpack.

With this unexpected joy, Li Yi can be regarded as satisfied with this upgrade. It's not so nervous to look at the potion bar next, no matter what appears in the potion bar, it's worth it, and if something good can appear, it's a joy to be happy.

As far as Li Yi knew, the new elixirs that could be produced were high-grade auxin and mid-level life elixirs, as well as high-level life elixirs. The high-level life elixir will definitely not come out now, but the other two are possible, if the mid-level life elixir appears, Chen Meng's leg may have hope.

Thinking like this, Li Yi became nervous again, not because he was worried that there would be no good things, but because it was outside Chen Meng's legs!

Click on the potion bar and pull it down little by little......

PS: I've been a little confused lately, plus I want to think about something new in the system, it's a little stuck, and it's been delayed for a few days, sorry, sorry!