Almost at the same time as the black dragon's dragon roar was completed, two invisible sound waves were emitted simultaneously from the two devices. These two sound waves don't look as loud as the dragon's roar, but they have a bit of a silent flavor that tastes better than sound. Under the precise analysis of Robert X's external vision system, it can be seen that after the two invisible sound waves collided with the sound waves generated by the dragon's roar in the air, not only were they not suppressed by the dragon's roar, but there were signs of counterattack.

"This can't be!" The black dragon's eyes widened in surprise as he saw the sound waves emitted by the two strange devices on Robert X, slicing the sound waves created by the dragon's roar into pieces like two sharp blades.

The information that inexplicably appeared in the consciousness of the black dragon's new life told him that the dragon roar of the dragon secret technique had not appeared on the mainland for a long time since the Great War of the Ten Thousand Races, and he didn't expect it to be so easily cracked by this metal monster.

Not only the black dragon, but even Tenelle, who was inside Robert X, was so surprised that she almost bit her tongue and asked in a trembling voice, "How did you do it?"

Tenel could sense that the power of the dragon's roar emitted by the black dragon with the strength of the Demon Gold Sanctuary was far more powerful than the power of Tenault's peak state when he was Dyer Knight's identity.

At that time, Dear Knight had caught the enemy off guard more than once with this trick, and forged his near-undefeated reputation. Unexpectedly, Robert X could easily resolve this dragon stunt in this way.

The most terrifying thing is that Robert X is just a purely mechanical creation, and Alfie, who wields it, is a bard who does not rank among the ranks of the continental power system. Doesn't this mean that even an ordinary person, if he can manipulate the same mechanical creation, then he has the strength to compete with the Sanctuary or even a high-level Sanctuary?

A strong sense of crisis arose, and Tener felt that after so many years, the era when the dragon clan dominated the continent by force seemed to be gone.

"Haha, it worked! It seems that Kaye and Kenobi used this trick when they faced off! That's why Kenobi came up with this clever way to deal with it!" Alfie said proudly.

After Tenael mentioned the dragon's roar just now, he quickly searched the database of Robert X, and sure enough, he found Kenobi's response in the first place. The most wonderful thing is that Robert X, as Kenobi's most proud work at the time, was equipped with almost all kinds of weapons that Kenobi had developed, and this sonic weapon named Sonic Knife by Kenobi was naturally no exception.

The rest is very simple, the only obstacle to firing the Sonic Knife is that it requires a lot of energy, even if Robert X is at full power, it can only be fired three times. For Alfie, there are demonic notes and three divine powers that can convert any energy, and energy is not a problem at all.

So under the impetus of the energy of the transformation of mechanical divine power, the sonic knife really gave everyone a big surprise.

"But it's a pity. If it weren't for the need for the Black Dragon to continue to provide the Dark Dragon Flame, these two sonic knives would definitely be able to inflict a lot of damage on the Black Dragon. Alfie said with regret. The Sonic Knife is a secret weapon created by Kenobi to deal with Kaye, and it is not a problem to deal with the Black Dragon.

"You must not harm the body of the black dragon, have you forgotten our agreement?" said Teneil, staring at Elfie.

"Of course not, so the Sonic Knife just clicks to the point. Alfie shrugged, this kind of discussion in front of others and hurting other people's bodies was really not good, which made him inexplicably feel like a thief.

"I think our biggest problem at the moment is how to get the Black Dragon to attack with the Dark Dragon Flame as we want. Rebecca's seemingly casual reminder made the other two realize a cruel reality: as the black dragon's fighting instinct recovered more and more, the means of attack began to turn over various tricks, and the use of dark dragon flame seemed to be less and less.

"What can you do?" Tenelle and Alfie asked each other in unison. After asking, the two looked at each other and smiled bitterly, this is really an unsolvable problem at present.

"Maybe we can give the Black Dragon the illusion that he can solve us with the Dark Dragon Flame?" Alfie looked at Tenel and made a suggestion, after all, she should theoretically know the Black Dragon best.

"It's a viable option, but it's not easy to get the black dragon to have this illusion, at least we'll have to take a few of his attacks head-on. Tenael said with a deep groan.

"I object!You two are simply crazy, don't forget that the black dragon outside is now a magic gold sanctuary, after Robert X takes his attack head-on, how sure are you that it will not be completely destroyed?" Rebecca looked at them angrily and angrily, these two guys were simply joking with everyone's lives!

"According to the results of data analysis, the attack of the level of the dragon's roar just now, I can only withstand it twice before it is completely scrapped. Robert X interjected at the right time, apparently not approving of such a risky approach.

"Then we'll just try to tease the black dragon with water-based magic. Let's see if we can get him to use the Dark Dragon Flame. After fighting with the black dragon a few times, he felt that after the black dragon had experienced a baptism of illusion at this time, it seemed that it was not as strong as the previous time when he was in the trial space, and Alfie's courage became fattened, completely forgetting the tactics he had formulated before, which was mainly based on "escape".

"Can Robert X use water magic?" asked Tenaier curiously, if this mechanical creature could even use magic, it would be too rebellious. It's a pity that her illusion won't work first when the black dragon is awake, otherwise she can try it.

"Unfortunately, Robert X can only fire a few magic cannonballs with the magic cannon mounted on it, which is probably not enough. Alfie said with regret, but since he had made this suggestion, he naturally had a plan, "But we can use the water system trapped dragon formation hosted by Keke to make some articles." ”

"Please, don't gasp for breath when you speak. Tenelle gave Alfie a blank look, and she was a little disappointed just now.

"It seems that you don't object to the use of the four-series trapped dragon array?" Alfie confirmed, in order to protect the black dragon's body from harm, Tenael strongly opposed the use of the extremely powerful four-series trapped dragon array.

"As long as I can break the seal of the dragon as soon as possible, I can tolerate some small injuries that don't hurt my muscles and bones. "Tenaire has a hunch that if the current situation continues, even if the seal of the dragon is lifted, her soul will not have an advantage when she competes with the newly born consciousness of the black dragon, and the speed of the black dragon's growth is too amazing. Although the two encounters just now fell to the downside, it was all an illusion caused by hitting the muzzle of Kenobi's specially designed gun.

"Just have your words!" Alfie said in high spirits after getting Tenelle's approval, "Robert X, help me contact Koco!"