Who Else?!

Although the attacks from the two Black Tortoise No. 2 were purely physical, their size still caused chaos within a radius of several dozen meters.

Needless to say, the plants and trees were destroyed, and even some of the surrounding rocks were shattered under the attack of the longsword. The ground looked like it had been blasted, full of craters.

The two mechs clashed for more than ten minutes. Although the fight looked quite intense, neither of them sustained any damage.

That makes sense, considering that the data in the databases, the computers inside, the artificial intelligence programs, and even the structure of the machines are exactly the same.

Moreover, during the battle, Yi Xuan was merely an observer and did not participate in any actions whatsoever.

In this situation, it's not something that can be decided in a short time, since the two sides have virtually identical Xiantian conditions.

Yi Xuan didn't dwell too much on its close-combat power, since the main purpose of the Black Tortoise was twofold: to protect the safety of the pilots inside and to provide long-range firepower.

The upgrade of the Black Tortoise is mainly based on these two aspects.

"Activate energy protection!"

As Yi Xuan gave the order, the Black Tortoise No. 2 he was riding, just like before, began to emanate a blue energy from the inside out. This energy spread very quickly, completely enveloping the four-meter-tall Black Tortoise No. 2 in an instant.

Upon closer inspection, it can be observed that the color of this energy shield is significantly darker than the previous one.

This is the biggest change Yi Xuan made to the Xuanwu: upgrading its energy shield system. The current energy shield can theoretically provide about three times the defensive power of the previous shield, and its energy storage capacity has also increased significantly, from twenty mid-grade spirit stones to one hundred mid-grade spirit stones.

This is not because Yi Xuan could only improve the energy shield to this extent, but because the Black Tortoise itself limited the improvement of the energy shield system.

Ultimately, whether it's increasing the strength of the energy shield or improving its energy storage capacity, the most crucial issue to address is space.

This is why the newly formed Black Tortoise No. 2 is one meter taller than the Black Tortoise; a small portion of its space was dedicated to the energy shield system.

Are you ready?

"Ready!"

A mechanical voice entered Yi Xuan's ears through the Black Tortoise No. 2 being piloted; it was the response from the artificial intelligence of the Black Tortoise No. 2 opposite him.

The Black Tortoise No. 2 raised its left arm, and the mechanical structure on the left arm changed continuously. In less than three seconds, the mechanical hand disappeared from the arm and was replaced by the emission port of a small laser emitter!

If we were to dissect the Black Tortoise No. 2 now, we would find that its internal energy shield system has increased in size considerably.

A new laser emitter was also added, which was now integrated with the laser emitter on the mecha arm. Inside the device was a Spirit Stone that looked no bigger than a thumb, Spirit Stone was currently surrounded by a hazy light.

That's right, the Spirit Stone placed in the device is a High-Grade Spirit Stone that is one-hundredth the size of a normal one.

Ever since using the laser emitter to eliminate Qi Yun during the Artifact Ruins and returning to his base, Yi Xuan has been preoccupied with improving the laser emitter.

Based on his intuition, Yi Xuan felt that the attack launched by the laser emitter in the Artifact Ruins was far more than just eliminating Nascent Soul Realm.

Later, when Yi Xuan inspected the burned laser transmitter, he discovered that the High-Grade Spirit Stone placed inside the transmitter had not actually been completely consumed; at least half of its Spiritual Qi remained.

In other words, the intensity of the laser emitter was simply insufficient to accommodate the instantaneous injection of Spiritual Qi from the High-Grade Spirit Stone, which was one of the reasons for the laser emitter's destruction.

Therefore, during this month, Yi Xuan not only modified the Black Tortoise, but also had the Butler input all the data of the laser emitters captured in the Artifact Ruins into the base's database.

Then, No. 01 compared the data with the database. The final conclusion was that the previous estimate of the Spiritual Qi intensity of the High-Grade Spirit Stone was too low, which led to the large difference between the final result and the result simulated by No. 01.

With this comparison, No. 01 helped Yi Xuan regenerate the laser emitter design.

There are two types, which are the two laser emitters that were previously placed in the storage area of the Artifact Sect Great Hall.

The larger one is about the same size as the original laser emitter, and it still uses a High-Grade Spirit Stone as its energy source. However, according to No. 01's calculations, a full-force attack from this laser emitter could even instantly kill a Spirit Transformation Realm expert.

The other, smaller one, is the one currently mounted on Black Tortoise No. 2. It carries a much smaller Spirit Stone, only one percent the size of a normal High-Grade Spirit Stone.

However, after calculation, No. 01 can be 100% certain that a full-force attack from this laser emitter could instantly kill an unsuspecting Nascent Soul expert.

At this moment, Black Tortoise No. 2, which was opposite Yi Xuan, was raising the laser emitter in its left hand, aiming it directly at the Black Tortoise No. 2 that Yi Xuan was riding.

Of course, this was intentional on Yi Xuan's part; he wanted to use this method to verify the updated energy defense system of the Black Tortoise.

"Fire!"

With Yi Xuan's command, the Black Tortoise on the opposite side instantly completed its recharge. A burst of bright light flashed from the launch port on its palm, followed by a straight beam of light shining onto the energy shield of Black Tortoise No. 2, where Yi Xuan was located.

Interestingly, the laser that could burn through the body of Nascent Soul expert was completely blocked by the energy shield.

The attacks and defenses of both sides seemed to have reached a balance, and the energy shield of the mecha that Yi Xuan was riding on was not broken until the laser energy of the opposing Black Tortoise No. 2 was exhausted.

Of course, the consumption was still considerable; in just a short time, it amounted to one hundred Mid-Grade Spirit Stone.

Indeed, the consumption of Spirit Stone by the laser and the energy shield has become almost equal, which was something that was expected.

After all, both laser emitters and energy shields are simple applications of energy, and the energy conversion involved is not complicated. In combat, the energy consumption of the two is roughly the same.

Yi Xuan was quite satisfied with this experiment; the new Black Tortoise No. 2 was a significant improvement over its predecessor in both attack and defense.

If the previous Black Tortoise was able to fight to a draw with a cultivator at the Golden Core Perfection stage, then Yi Xuan was now fully confident that he could go toe-to-toe with a Nascent Soul stage expert in the Nascent Soul Realm Black Tortoise No. 2 II he was riding!

Yi Xuan, who was very satisfied with the strength of the Black Tortoise, couldn't help but shout into the empty valley, "Who else is there!"