As a divine power, as long as Liu Siyi has the ability, he can get no more than the upper limit of the thunder and lightning elements gathered by the lightning runes. Provided, of course, that his body can withstand it. Even if you can't bear it, there is a lightning rune, once the excess magic element is devoured, it will be absorbed immediately without harming the body.

But the Thunder Eagle and the Thunderbird can't, although they are powerful fifth-order troops, no matter how powerful they are, there is a limit to the power they can absorb, otherwise they will explode and die.

However, Liu Siyi and the others didn't know this. Thunder Eagle and Thunderbird have never cultivated, and now they suddenly found that a large number of thunder and lightning elements appeared around them, and they were able to become stronger by absorbing the surrounding thunder and lightning elements, of course, they wanted to absorb as much as possible. And Liu Siyi, although he has received the inheritance of a legendary mage, he has no experience in cultivating in another world after all, and he has no experience in cultivating with others. Even if it is a legendary mage's meditation, it is not in an environment where there are no distractions.

If there was no interference from the Thunder Eagle and the Thunderbird, there would be no problem with cultivation, but now that the interference is so great, the problem will come out.

However, the tragedy did not happen, after all, it was just beginning to meditate, and the speed of gathering thunder and lightning elements was not very fast, and the amount was not very large, and the speed at which Thunder Eagle and Thunderbird absorbed thunder elements far exceeded the speed of convergence of thunder and lightning elements. As a result, a fault line immediately appeared, which also interrupted Liu Siyi's continued meditation.

Fortunately, the meditation was interrupted, otherwise if too much thunder and lightning elements were absorbed, the thunder eagle and the thunderbird would definitely explode and die.

"How!" A high-pitched eagle roar came out, and both the Thunder Eagle and the Thunderbird were full of dazzling thunder and lightning light, but the purple light on the Thunder Eagle was even worse, so that Liu Siyi didn't dare to look back, so as not to stab his eyes.

The light lasts for a long time, and this burst of light will definitely be seen by people dozens of miles away, but it doesn't matter, there is no existence around that can threaten them.

After a long while, the dazzling light gradually dimmed, and Liu Siyi was finally able to squint his eyes and see the four huge figures in the light. Finally, the light disappeared completely, and the thunder eagle and thunderbird in front of him could be seen clearly.

At this time, Thunder Eagle was flowing with a purple and faint golden thunder and lightning plasma, and the subtle crackling sound of electric shocks was endless. From the purple-gold plasma, it can be seen that its thunder and lightning power is even more powerful.

The same goes for the Thunderbird, but the change is not as big as the Thunder Eagle, and it is still blue, much like the previous state of the Thunder Eagle.

Not only that, but their size has changed dramatically. Originally, the nest was divided into five parts, one sleeping on one side, but now it can be found that the gap in Liu Siyi's share is obviously smaller.

"Master, I feel more powerful." The Thunder Eagle spread its wide wings, and the purple-gold current was dazzling.

Sure enough, both the Thunderhawk and the Thunderbird can absorb lightning for their own growth. Liu Siyi thought that this was the same as cultivation, but in a different way.

"However, the power is strong enough, but it is so strong that I can't control it freely." Before Lei Ying finished speaking, a purple-gold electric current on his body instantly burst into the wall nest below, and then "Bang! It exploded like a bomb.

Fortunately, the wall nest is protected by the law and has not been harmed in the slightest.

"Are you the same?" Liu Siyi frowned and asked the three thunderbirds.

"How!" The three thunderbirds shook their heads and spread their wings, indicating that they were able to control their newfound power.

Why are they all also absorbing the thunder element, the Thunderhawk can't control its own power, while the Thunderbird can?

Liu Siyi didn't know why, but it didn't prevent him from carefully recalling and thinking about the meditation process.

"I guess, I know why." Liu Siyi said: "When I was meditating and cultivating, there were a lot of thunder and lightning elements gathered around my body, and you absorbed these elements, and Thunder Eagle was closest to me and absorbed the most. Although he gained the most power, he exceeded his own control. As for you, the lightning element absorbed is not beyond your control, so it doesn't matter. ”

Naturally, the powerful secret of the lightning rune will not be spoken, and it can be brought over with a sentence of meditation cultivation. Thinking of this, Liu Siyi had actually thought about why the Thunder Eagle in front of him had evolved into a Thunder Eagle, and why the intelligence of the original eight Thunderbirds had surpassed that of the original ordinary troops.

There are many possibilities for the "refresh" of wild monsters, but no matter what class it is, 99.9% of them are ordinary troops, and very few may have elite troops. Of course, as a natural hero, it is also possible to farm out wild monsters. But as soon as these heroes appear, it won't be long before they start wandering around, so it's almost impossible to see a natural hero of a wild monster.

Obviously, it is very likely that this Thunder Eagle will be an elite class as soon as it appears, and of course, it is not ruled out that thunder and lightning will appear in nature. Once the thunder and lightning appear, the thunderbird can absorb the power of the thunder and lightning, which is like cultivation, the more thunder and lightning absorbed, the stronger the strength will naturally be, and it is normal for evolution to occur. Otherwise, in the battle with the dwarves, how did the Thunderbird be able to use its wisdom?

Of course, maybe the thunderbird who was struck by lightning at the beginning didn't realize that being struck by lightning could increase his strength, but who knows what happened in the past? Liu Siyi is more concerned about now: Is Lei Ying's current state advanced to the sixth order?

Thunder Eagle, a fifth-order high-level elite mutant class.

This is the information obtained by the reconnaissance technique.

Variation! It's mutation again!

Indeed, the thunder and lightning that can be produced by the fifth-order Thunderbird is light blue, and the thunder eagle emits dark blue thunder, and only when it reaches the sixth order, the thunder and lightning of the thunder eagle will add a touch of purple to the dark blue, and only when it reaches the seventh order, the thunder eagle can emit purple-gold thunder and lightning.

But now, a fifth-order high-level thunder eagle can emit purple-gold thunder and lightning that can only be possessed by the seventh-order, and it is impossible to say that it is not mutated.

As for why this mutation occurred, of course Liu Siyi would not say his guess, but he was also very puzzled, could it be that while Lei Ying absorbed the thunder and lightning element, he could also absorb the laws of thunder and lightning in the lightning rune?

This idea is not far off, but it is not far off.

As we all know, there are many kinds of flames, water, earth, and wind, and the same is true of thunder and lightning, and they all possess power far beyond ordinary flames and lightning.

As a divine lightning rune that can only be condensed by the ninth order, the thunder and lightning elements gathered are not only ordinary thunder and lightning elements, but also some special thunder and lightning in this world. Of course, the amount of it is very small, and it happens to be absorbed by Thunder Eagle, which causes it to now have a power far beyond its control.

This also led to the fact that after Liu Siyi used the same method to improve the strength of the Thunderbird, this kind of mutation rarely occurred.

And this Thunder Eagle was able to use purple lightning before, so it can only be said that when it was struck by lightning, it may have been lucky enough to absorb a higher-level lightning bolt.