"This is the strength of the Crystal Transformation Realm?" Han Feng raised his hand and waved, and the aura of heaven and earth that he had drawn turned into a sea of fire, suspended in the air, covering a radius of nearly a thousand zhang, burning so much that the aura was crackling.

The power of this sea of fire is enough to burn the city!

Han Feng only felt it at this moment, after the soul power turned into crystals, the true power was revealed, comparable to the old monster of the Jiedan, and even surpassed.

In his mind, as long as he had the right spell, he would completely unleash the combat power of the Crystal Transformation Realm, and he would not be weaker than any school!

Han Feng flipped it over, and his soul power swept out, extinguishing the sea of fire in the air, and the flames in a radius of thousands of feet disappeared in an instant, returning to nothingness.

He silently calculated the time, and found that there should be about two years left, which was enough time for him to consolidate various secret techniques.

The secret art is not in many, but in refinement!

In the following time, in addition to drawing the Nine-Rank Runic Urn to improve the success rate, he also focused on cultivating the Xuan Soul Needle.

Under the level of his crystallization realm, the strength of his soul power increased greatly, and the speed of the condensed soul needle became faster, almost half a breath away, it was as fast as lightning, stabbing on the chaos barrier, and it also rippled out a brilliant halo of colorful light, gorgeous and colorful.

As soon as his mind moved, hundreds of Xuan Soul flew out, and under the control of his seal, the Xuan Soul Needle condensed together and turned into a Xuan Soul Sword, although it was only a few feet long, it could be slashed on the Chaos Barrier, causing a large area to sink deeply, and the sound of a roaring riot erupted, which was deafening.

With a flick of Han Feng's wrist, the Xuan Soul Sword rebounded back, returned in an instant, and then flew out again, striking the Chaos Barrier again.

He controlled the Xuan Soul Sword to attack continuously at the same point, making it roar, and gradually, a wisp of chaotic qi escaped, and with a light roll, a slight touch made his Xuan Soul Sword feel like it had been struck by lightning.

Han Feng's soul body trembled slightly, and he hurriedly controlled the Xuan Soul Sword to quickly disperse, recovering into hundreds of Xuan Soul Needles, which quickly returned, submerged into his body, and disappeared without a trace.

He was afraid for a while, just now, that wisp of chaotic qi almost shattered his Xuan Soul Sword, but fortunately, he reacted in time and let the Xuan Soul Sword disintegrate and withdraw it as soon as possible.

Han Feng didn't dare to attack the Chaos Barrier again, if he really accidentally broke through it, who knows what catastrophe would happen, and if it really happened, it would be too late to regret it.

However, he didn't give up the cultivation of the Xuan Soul Sword, after all, he could also learn other control techniques, especially its speed, he repeatedly refined and kept improving, so that it could reach an even more terrifying level.

Even, he used his soul body to fly with the Xuan Soul Sword, but the speed was too fast, even if his soul body had turned into crystals, he couldn't withstand the impact.

He hurriedly withdrew the Xuan Soul Sword, and after the soul body landed, he suddenly felt dizzy and dizzy, and there was a feeling that the world was spinning.

Han Feng stabilized his mind and continued to practice, the Xuan Soul Sword shone brightly in this world, and for a while, it seemed that the entire space was sword light, and it was all soul power!

......

Time quickly passed more than half a year, and it was only about a year since I left this mysterious little world.

Han Feng stood on the Xuan Soul Sword, galloping wantonly on this mysterious little world, so fast that he couldn't see a shadow.

It took a while before he stopped.

I saw that his soul body had become more refined, as if he were a real person, and even his clothes and coat had been transformed, no longer naked, but the occasional crystal light on his bare arms made his majestic aura spread out, terrifying.

Han Feng no longer cultivated the secret technique of the Xuan Soul Needle, and instead practiced the method of self-detonation of soul power, but it took him more than a month of work, and he failed to explore the mystery of this secret method.

When wisps of soul power are about to explode by themselves, they will form various repulsive hedges, and before they can guide the aura to gather, they will collapse on their own.

Han Feng was puzzled and simply stopped researching.

He switched to practicing the Five Elements Seal Technique, and although he had reached his strongest state before, it still took too long, and it took him seven breaths.

He started with the black fire seal, and as his ten fingers moved, the seal flew over, and a black flame immediately condensed above his head, rapidly transforming, and in less than a breath, it turned into a black ellipsoid, only five inches in size, but the power was surging, and the black light was swirling.

He pushed it out with both hands, and this supreme black fire mark flew out, and in less than a breath, it crossed a distance of thousands of kilometers and went to the chaos barrier, and with a loud bang, it exploded a small area into a dent.

Wei Neng has to be said to be very big, but compared to his current strength in the Crystal Transformation Realm, it feels a little overkill.

Han Feng frowned, and immediately pinched the trick to condense the black fire mark of an ellipsoid, but this time, he did not urge it out, but continued to compress it.

At first, he was very smooth, and in just one breath, he was able to reduce the five-inch spheroid to about four inches, and it took him five breaths to compress it from four to three inches.

As he tried to compress the ellipsoid to two inches, he felt a great force of resistance rush over him, causing his soul to shake.

The soul power was consumed sharply, and more than half of it was consumed in a short time, making its soul body become dull.

And at this time, he only made the black fire mark of the ellipsoid smaller to two inches and six minutes.

At this point, he could no longer move forward, as if a huge wall stopped him, no matter how hard he tried, it would be to no avail.

Han Feng's soul power was consumed extremely quickly, disappearing like flowing water, and when there was only about a tenth of it left, he could only stop, and if he continued to fight like this, he would have to be injured at all.

He sighed, only then did he understand that the Black Fire Seal was not a simple technique, but still had great room for improvement, of course, provided that he had this ability.

At this moment, the ellipsoid of two inches and six minutes suspended above his head was like a big duck egg, emitting a brilliant black light, and its power was many times more powerful than the previous black fire seal.

Han Feng exhaled lightly and pushed with his backhand, urging the black fire mark on the top of his head out.

In the space of a breath or two, the black fire mark flew over a distance like a black light, and in the blink of an eye, it slammed into the Chaos Barrier, erupting with a violent sound.

Radiant and colorful.

The chaos barrier shook violently, and several wisps of chaotic qi overflowed, sealing the fierce power of the black fire seal, and the black light quickly dissipated, and soon disappeared.

Han Feng was surprised, he didn't expect that the smaller Black Fire Seal could burst out with such power, if it was put into the outside world, it would definitely destroy the world, and give the opponent a sudden attack, the effect would be 100% amazing.