Of course, Tang Feng also knew that it was not easy to establish a mountain guarding array.

First of all, you must invite the Mo family giants in the southern Baolai Prefecture to make a move, because this is what the Mo family giants are best at, secondly, you need to find enough materials, and the third and most important point is that you need a powerful magic weapon treasure as the eye of the big array.

And according to the current situation, if you don't build it, if you really plan to build a mountain guarding array, you must at least be able to defend against Dao Ancestor-level powerhouses to attack, otherwise it won't be too meaningful.

It's just that to establish a mountain guard array of this level, there are too many materials needed, and it takes a lot of time and energy, at least for Tang Feng for now.

"Forget it, let's take one step at a time, the most important thing at the moment is to improve one's realm cultivation first!" Tang Feng secretly sighed in his heart.

After greeting Zu Long and the others for a while, and guiding some questions about their cultivation, Tang Feng finally took out all his spirit stone savings and gave them to Zu Long and the others, and Tang Feng announced the retreat.

Although the tree spirit of the Heavenly Divine Tree chose to surrender, Tang Feng also needed to completely fuse it into his Chaos Taiyi Divine Tree, and only in this way could he improve his strength, otherwise it would not be of great significance.

"I will choose to retreat for the next period of time, but it shouldn't be long, and when I get out, I will go to the Ghost Dao Gate!" Tang Feng spoke.

The corpse puppet technique of this ghost Dao Gate, its highest level ghoul death technique, to be honest, Tang Feng is still a little moved, after all, he can unconditionally resist a life, if he cultivates it, then he is equivalent to an extra life.

The mad dragon said: "Big brother, you can retreat with peace of mind, there are still us here!"

Chen Haoran and Xu Yao have now entered the realm of the Great Emperor, although they are not yet able to compete with Dao Ancestor, but the Ordinary Great Emperor is by no means their opponent.

"Big brother, with us here, you can rest assured!" Xu Yao said.

Tang Feng stopped talking nonsense, and finally talked to Xiao Ruyin, Zhuge Furong and Long Yiyi, and then came to the backyard of the City Lord's Mansion, and then entered the cave.

In the cave sky, Tang Feng was sitting cross-legged on top of a mountain, and suddenly the tree spirit of the Heavenly God Tree appeared.

"Master, what do you mean is that you want to completely refine the Heavenly Divine Tree, if that's the case, won't even I have to refine it?"

If the Celestial Tree is refined, doesn't that mean that it will also be doomed?

Tang Feng frowned, this was actually a little difficult for him, but if he didn't refine it, even if he got this Heavenly Divine Tree, it wouldn't make much sense.

The Baizhang Tree Spirit said, "Master, what you cultivated before, but the Chaos Taiyi Divine Wood Technique?"

"Exactly!" Tang Feng said.

"Master's Chaos Taiyi Divine Tree, can you cultivate the tree spirit?" asked the Baizhang tree spirit.

"No, I didn't use the real Chaos Taiyi Divine Wood as a foundation for cultivation, and I didn't want to condense the tree spirit!" Tang Feng said.

The Baizhang Tree Spirit suddenly said with great joy: "Then this is easy to do, master, I have a proposal, you don't need to completely refine my Optimus Divine Tree, but just fuse the Chaos Taiyi Divine Tree into the Optimus Divine Tree." ”

Tang Feng raised his eyebrows and asked, "Fuse the Chaos Taiyi Divine Tree into the Heavenly Divine Tree?"

"That's right, in other words, next, the master you can be the master of the Heavenly Divine Tree, and fuse the Chaos Taiyi Divine Tree in, but the master can rest assured, this is not the origin of the damage to the Chaos Taiyi Divine Tree, after the fusion, the power will be greatly improved, even more powerful than the master himself fusing the two, because I am in charge, and there is no need for the master to be distracted when fighting, and the subordinates can be mobilized. ”

The Sky Tree Spirit said this, and then said, "Of course, if I do this, I won't be refined and preserved." ”

Tang Feng nodded and said, "This is a good way." ”

The spirit of the Optimus Tree was overjoyed and said: "Don't hide it from the master, that is, the cultivation of the subordinate realm is not high enough to exert the power of the Optimus Divine Tree, the Optimus Divine Tree was the foundation of the Immortal Tree before, if the cultivation of the subordinate realm is enough, you can exert the legendary Optimus Sword and the Optimus Guardian!"

"The Sword of the Sky and the Guardian of the Sky?" Tang Feng raised his eyebrows again and asked, "How powerful are these two martial arts?"

The Optimus Tree Spirit said: "This Optimus Sword is an immortal technique, even if it is an ordinary Great Sage, it can be killed with a single sword, but it is not easy to completely launch this Optimus Sword, as for the Optimus Guardian, it can defend against the blow of the First Order Great Sage!"

"Even an ordinary Great Sage can be killed?" Tang Feng's eyes suddenly lit up, and he had to say that he was moved.

As far as Tang Feng's current realm cultivation is concerned, except for the trick of reversing the devouring cyclone, the rest of the hole card methods are not enough to see in front of the Great Sage, even the Ancient Yuan Shen Hammer may not be able to play a role.

After all, when it comes to the level of the Great Sage, which one is not the existence of cultivating the Yuan Shen, what is even more terrible is that these Great Sages, each of them is an old monster who has cultivated for tens of thousands of years, and its Yuan Shen is naturally not bad, and it also has a strong foundation.

It is obviously unrealistic to rely on the Ancient Yuan Shen Hammer to compete with the Great Sage, and at best it can only be slightly blocked, so for now, Tang Feng urgently needs one or two powerful martial arts.

"In that case, let's get started!" Tang Feng immediately made a decision.

The Optimus Tree Spirit said, "But master, if you want to fuse the Chaos Taiyi Divine Tree into the Optimus Divine Tree, you must first strip it from yourself, so this process will be a bit ......."

Tang Feng smiled and said, "Isn't it just a little painful, don't worry, it's nothing!"

At that moment, Tang Feng's eyebrows moved, and a heavenly ancient tree appeared, and then a flash in the void, the stabbing divine spear appeared, and then directly slashed down with one shot, cutting off the connection between himself and the Chaos Taiyi Divine Wood Technique.

The hundred-zhang tree spirit couldn't help but be startled when he saw this, and quickly dodged to the side.

Tang Feng couldn't help but shake his head and smile faintly when he saw this, although his face was a little pale, and the aura of stripping the Chaos Taiyi Divine Wood was a little disordered, but this did not hurt his own origin, so it would not be a big deal.

Of course, Tang Feng also knew that the next integration of the Chaos Taiyi Divine Tree into the Optimus Divine Tree would definitely greatly enhance the power of the Optimus Divine Tree, and most importantly, the realm cultivation of the Optimus Tree Spirit would also be greatly improved.

But it doesn't matter, now that the Optimus Tree Spirit has recently signed a Heavenly Dao Servant Contract with him, even if this Optimus Tree Spirit is a real immortal tree, he has to obediently listen to his own words.