But this time is also extremely dangerous.

The heavenly tribulation outside didn't know when it would complete the condensation of power, and suddenly a thunderbolt fell, and he had no place to cry.

The iron outside the sky is extremely hard, and his two swords already have spirits, so there is no need to spend time pouring into the spiritual power of heaven and earth.

He had already expected that if he could make this Heavenly Sinking Iron into a blade and inject it into the spirit of heaven and earth, its power would definitely be much stronger than that of ordinary holy weapons, and it was even very likely to reach the level of immortal weapons.

In this way, he would be sure to fight with all the people of the Immortal Sect inside and outside this planet.

As soon as he thought of this, he didn't hesitate anymore, his hands turned into dragon claws, his right hand took the first complete piece of Extraterrestrial Sinking Iron, and his left hand took out the Evil Cloud Sword with cracks.

This Evil Cloud Sword, he hadn't dared to take it out since it cracked. Both swords have followed him from the earth to the present, and there are spirits within them who have long recognized him as the master, and he will not give up these two swords, and he will definitely repair them when he has the chance.

Now, this is the opportunity.

He held the dragon claw of the heavy iron outside the sky and suddenly exerted force, the power of the dragon after the transformation was so huge that he didn't dare to imagine it, this grip even made the entire space of the Chaos Palace tremble, which showed the strength of the power.

"Click!"

Under Xiao Chen's huge force, after only hearing a soft sound, cracks appeared in the entire Tianshen Iron, and there was a force rushing out inside.

At this moment, Xiao Chen used the power of space to continue to compress that power inside, and at the same time, the green fire emerged and began to slowly scorch the sinking iron.

After he reached Mahayana, all the powers merged into one, so when he used the green fire to start refining the Outer Heaven Sinking Iron, he was also using other powers.

Originally, his strength was not enough to shake the Sinking Iron outside the sky, but now he could use the dragon's claws to rub the surface of the Heavy Iron all the time, and with the help of the temperature of the green fire, he could make it into powder little by little, and then incinerate it at that time.

This is the method he came up with, originally it was just an idea, but now when he saw the powder of the sinking iron falling to the ground little by little, his heart calmed down, this method is indeed feasible, but the speed is too slow.

But this result is also very good, when the Black Dragon King held these two Extraterrestrial Sinking Iron before, he had no way, at most he made one of them into the shape of a weapon, but he couldn't introduce the spirit of heaven and earth into the weapon, so he could only use it as an iron that could not be broken.

It was already good that he could use this method to refine the iron outside the sky.

He didn't dare to waste time, and after the powder of the iron outside the sky fell to the ground, he divided his strength to incinerate the powder, turned it into liquid, and put it into the crack on the evil cloud sword little by little.

And the cracks on the Evil Cloud Sword are also recovering at a speed that is visible to the naked eye, after all, it is a material like Outer Heaven Sinking Iron, and it is still very simple to restore the Spirit Weapon level Evil Cloud Sword.

It took him nearly three months to finally melt all this piece of Extraterrestrial Sinking Iron into liquid, but it was only the size of a palm, but it was enough to refine the Evil Cloud Sword.

He didn't take the other piece of Extraterrestrial Sinking Iron to melt before starting refining, after all, the Heavenly Thunder didn't know when it would come down, and it would be much better to have a weapon in hand.

He is not arrogant enough, and completely uses his dragon body to resist, after all, there is only a fifty percent chance, one more holy weapon, one more chance, two words, he will almost not die under the heavenly tribulation.

Even if the catastrophe fails, it will be possible to retain the current strength and run back to Earth to restore it.

He immediately fused these liquids into the Evil Cloud Sword, and the Outer Heaven Shen Iron immediately completely wrapped the Evil Cloud Sword, and quickly fused with the Evil Cloud Sword under Xiao Chen's power.

It is difficult to smelt the Outer Heaven Sinking Iron, but it is much easier to use it to upgrade the Evil Cloud Sword, and when the Evil Cloud Sword and the Outer Heaven Sinking Iron merge, Xiao Chen also began to melt another piece of Outer Heaven Sinking Iron that had already been formed.

If he has the ability, he can actually directly inject the spirit in the Immortal Slashing Sword into this weapon that has already been formed, and then use it with a little polishing, but it's a pity that he doesn't have that ability.

Just as Xiao Chen was slowly melting the iron outside the sky, suddenly a flash of inspiration flashed in his mind, and he suddenly stopped the movement in his hand, and took out the turtle pattern shield between his hands.

This is the demigod weapon that Wuji Palace took out from the earth at the beginning, and this is a demigod weapon that was fished out with the Central Galaxy on his back, but he still doesn't know the name of this demigod artifact, nor does he know its specific function.

He only needs to know a little bit about it, though.

This demigod weapon can change its appearance at will, and this alone is enough to save him most of his time now.

He turned this demigod weapon into a special furnace, and after the green fire was put into it, the power of the flame was directly increased by more than ten times, and after the Outer Heaven Sinking Iron was put in, there were traces of melting directly, and he didn't even need to grind it into powder with dragon claws a little bit.

Xiao Chen was overjoyed in his heart, and he didn't dare to waste a little time, so he immediately put all the melted immersion iron liquid into the Immortal Slashing Sword, and further began to fuse!

At this moment, he didn't know how much time had passed, only that the Heavenly Tribulation was coming, and all his strength was exerted to the extreme, and in the shortest possible time, he fused the Outer Heaven Sinking Iron into the two swords.

Time passed little by little, and his spirit was used on these two swords every minute, and even he didn't know how long it was, and the light on the two swords suddenly shone brightly, illuminating the entire Chaos Palace in an instant, and even the immortals who were waiting to die in the Chaos Palace were awakened.

Xiao Chen's eyes widened as he looked at the two swords in front of him, and his eyes were full of joy.

Black lines appeared on the Immortal Slashing Sword, both in terms of hardness and sharpness, they were stronger than before, and they were already reborn!

The Evil Cloud Sword is even more so, not to mention that all the cracks have been repaired, and the grade has also been upgraded by several grades, and the two swords at this moment can be called divine swords!

He didn't know what grade these two swords were now, but of all the blades he had come into contact with, except for the demigods in his hands, these two swords were the most powerful weapons, and he had never seen a stronger blade than these two swords in the hands of others.

With these two swords, his chances of crossing the catastrophe will be greatly increased.

At this time, he should have gone straight out to prepare for the catastrophe, but his eyes fell on the demigod that had turned into a furnace.

If his two swords had the ability to transform into such a semi-artifact, wouldn't they be confined to the sword anymore?

Although doing so may cause him to lose even more, after all, he has not fully mastered the ability of the demi-artifact, but this demi-artifact does not seem to intend to recognize him as the master, it is better to refine it together.

As soon as he thought of this, Xiao Chen immediately did it, his dragon claws could not pose a little threat to the demi-artifact, but after he put the green fire in it, and then urged the ability of the demi-god weapon to expand the power of the green fire to a hundred times, this demi-artifact also showed signs of melting.

But that wasn't enough, it took too long, so he injected the power of the extreme yang into it, so that the melting speed was considerable.

When the demigod became invisible, four different rays of light flew out of its interior, each representing a piece of power, Xiao Chen used his own strength to control these four rays of light, and each flew into his two divine swords.

Immediately after, he sensed the changes in the two swords, and after these four powers flew into the swords, he could clearly sense the existence of those four powers, but he could only sense one now, that is, the ability to transform at will.

This made him happy in his heart, he thought that after smelting it, this power might pass, but he didn't want to inherit it perfectly into his sword.

He didn't know what the latter three forces were, but he would know sooner or later.

And the current materials of his two swords can fully withstand these four powers, Xiao Chen's eyes looked at the melting demigod weapon, and divided all the liquid on the two swords, fusing them little by little.

These two swords have been completely reborn, as for how powerful they are, as long as they are brought out to Su Lao, they should know.

Su Lao has lived for so many years, and has experienced far more things than him, so he should know the grade of these two swords.

After he had done all this, he tried to open the top chest, but failed, so he had no choice but to give up and try again when the tribulation was successful.