A moment later, both of them arrived in the clearing, while Luo Linger and Wang Pengfei watched the battle from the sidelines.

"Senior Brother Lu, be careful!" Xu Hai chuckled, and from the Qiankun bag on his waist, a fire shadow suddenly flew out, he waved his hand and grabbed the fire shadow, and slashed down at Lu Chen's head, it turned out to be a third-order magic weapon flame knife, under one blow, a huge sword gang hovered above his head, and the powerful spiritual power fluctuations suddenly rolled up a violent wind!

Lu Chen kept urging his spiritual power, condensing several layers of protective curtains in front of him, Xu Hai's flame knife slashed fiercely on the light curtain, and the light curtain was shattered after resisting for a moment, but it also removed most of the impact force, and Lu Chen only took a few steps back.

Lu Chen did not take the initiative to attack, firstly, he wanted to test his defensive strength, and secondly, he wanted to paralyze Xu Hai.

He seized the time to arrange a positive and negative four-elephant formation, which was mainly based on trapping the enemy, it was a third-order array, which was much more complicated than the trapping spirit array, and if he was not familiar with the way to crack the formation, it would be difficult to get out in a short time.

It is based on the eight directions of the eight trigrams, such as Kan, Li, Dui, Zhen, Xun, Qian, Kun, and Gen, and places the spirit stone as the eye of the formation to surround the enemy in the array. Among them, four downward directions and four oblique directions, virtual and real are born together, and positive and negative are used interchangeably, so it is called "positive and negative four elephant arrays".

"Qi!" With Lu Chen's low shout, the formation opened, although there was a slight shaking, but then it completely blended into the surrounding environment, and there was no longer a trace of abnormality.

As for Xu Hai, it was a flash in front of him, Lu Chen was gone, and even Luo Ling'er and Wang Pengfei, who were watching the battle, were gone, Xu Hai had also learned several commonly used formations, such as the Spirit Gathering Array, the Lock Spirit Array, the Five Elements Array, etc., but now this formation is obviously much more advanced, Xu Hai clenched the Flame Knife and was nervously guarded.

After Luo Ling'er and Wang Pengfei found that there was a burst of spiritual energy shaking, only Lu Chen was left among the two people fighting in front of them.

"Senior brother, you are so powerful, deliberately show weakness, and then let the opponent step into your positive and negative four-elephant array, with Xu Hai's cultivation, if you want to break the formation, it will take at least two hours. Luo Linger looked at Luo Chen with admiration.

Wang Pengfei shuddered for a moment, if he is not nervous, it is fake, he is not Lu Chen's opponent in a single round of cultivation, not to mention that now Lu Chen has learned a lot of powerful formations, if Lu Chen wants to clean him up, it will be done in minutes and seconds.

"Senior Brother Lu, Senior Brother Xu Hai didn't come at my instigation, he watched your wonderful performance in the outer door competition before, admired your cultivation, and just wanted to learn from you. Wang Pengfei hurriedly explained.

"Senior Brother Wang, I understand that Senior Brother Xu Hai has no malicious intentions, since it is a competition, then let's wait for Senior Brother Xu to break the formation!" Lu Chen said unhurriedly, but he was already thinking about laying out a formation in his heart.

"With the spirit stone as the base, the nine palaces as the shape, the real into the virtual, the virtual into the real!"

Lu Chen quickly arranged the spirit stones in the nine directions of the Qiangong, Kan Palace, Gen Palace, Zhen Palace, Middle Palace, Xun Palace, Ligong, Kun Palace, and Dui Palace.

"Phantom Array, get up!" With Lu Chen's low shout, another Nine Palace Cloud Sea Phantom Array was set up outside Xu Hai's trapped array.

Xu Hai, who was in the array, suddenly found himself walking into a sea of clouds.

Suddenly, the whole sea of clouds blew a strong wind, and even the mist on the side swirled up, like a nine dragons absorbing water, rolling up to the sky, layer by layer, a strong suction burst out, forming a storm, countless wind blades from this storm, revealing a palpitating sharpness, as if it could cut through the space.

The wind blade shook out a blue light, turning into a flying sword, spinning around the storm, and bursts of sound of breaking the sky burst out.

Around the storm, the flying swords turned into fog were even more overflowing, dense, and ready to go.

Xu Hai sacrificed a stack of third-order defense talismans to turn into a light shield to protect the surroundings, and urged the flame sword with all his strength to fly the flying sword turned into the fog flying all over the sky, but no matter how hard Xu Hai tried, the number of flying swords attacking him was still amazing, making people desperate.

After another hour, the spiritual power on Xu Hai's body had been exhausted, his hair was scattered, he looked embarrassed, and he was panting heavily.

Lu Chen is not a scheming and vicious person, and he only competed with Xu Hai to practice the formation in actual combat, and saw from outside the formation that Xu Hai was no longer able to resist the flying sword in the phantom array, so he withdrew the trapped array and the phantom array.

"Senior Brother Lu's cultivation is profound, and his formation attainments are even more amazing, I admire my brother!" Knowing that Lu Chen's subordinates showed mercy and withdrew the formation, without embarrassing him too much, Xu Hai hugged Lu Hai from afar and left.

At this moment, Xu Hai had realized that he was deceived by Wang Pengfei and Mo Zicong, and the real purpose of the two was to use him to teach Lu Chen a lesson, so after the competition, Xu Hai ignored Wang Pengfei and left.

Seeing that his trick was revealed, Wang Pengfei smiled at Lu Chen and Luo Ling'er, and fled as if he was flying.