Sticking the jade slip on his forehead, he had an experience, and now he is familiar with it, and with a little sense of the jade slip, the mantra of the three spells poured into his mind from the jade slip.

After taking down the jade slip, seeing that the jade slip still hadn't changed, how could he say that it couldn't be used? And how did this mantra be saved? Yi Heng was very curious.

However, after a little kung fu, he left it behind, and now the important thing is to learn the fireball technique, and then he found the mantra of the fireball technique in his mind and began to understand it.

Yi Heng, who thought that he would be able to send out the fireball technique immediately, was disappointed again, this mantra was not very difficult to understand, with his learning ability and comprehension ability in his previous life for decades, he quickly understood the mantra that seemed esoteric to others.

But understanding is understanding, if you want to make it, you have to cooperate with your hands, mouth, and heart, at the beginning he excitedly stretched out his right hand, recited the mantra, and thought that the fireball would come out, but who knew that there was no movement.

Later, I slowly stopped and practiced seriously, but there were problems everywhere.

Obviously, I have a correct understanding of the formula, but I can't cooperate well in my hand, either the formula and the finger are not matched, or the output of the aura is not timely, or the formula is finished and the finger is forgotten to pinch, in short, it is always wrong.

I finally knew why the others couldn't see it, and I thought that they should have been practicing like me for two hours and then doing nothing, it turned out that they were all studying spells.

Fortunately, his advantage is that his learning ability and comprehension ability in his previous life are much stronger than theirs, and the speed of learning spells should not be slower than theirs.

In the next few days, Yi Heng was studying the fireball technique, and according to his own imagination, the fireball technique should be like a gas tank in his previous life.

Since it is impossible to accurately output the aura, it is better to keep outputting it until the mantra and the finger are issued together.

Half a month passed, and Yi Heng finally sent out a fireball, but this fireball was big and small, and it swayed.

The existence time was only a few words, and before Yi Heng could aim at something and throw it out, it disappeared, and it turned out that the dantian aura had run out.

Yi Heng couldn't cry or laugh, in the past half a month, he finally coordinated the mantra and the finger decision, and he didn't expect that the disadvantages of outputting the aura in advance appeared.

Although the fourth layer of qi refining has a lot more aura than the first layer, there is only a trace of aura on the first layer of qi refining, and now it is only a few dozen threads at most, where can it be supported.

As a last resort, Yi Heng tried to cooperate with the three again.

Another half a month passed, and Yi Heng was finally able to send out a fireball perfectly.

Stretch out your right hand, spread your palm upward, chant the mantra in your mouth, move your fingers slightly, and mobilize the aura of the dantian along the meridians to the palm of your hand when the last word of the mantra and the last movement of your fingers.

I saw that the space above the palm of the hand was slightly distorted, and a fireball suddenly appeared above the palm.

The fireball was the size of a walnut, red and blue, and a stream of heat spilled through every corner of the hut.

At this time, the spiritual energy in the dantian was visible to the naked eye, and it was obvious that for the fourth layer of qi refining, the consumption of spiritual energy by the fireball technique was still very large.

After the tea kung fu passed, Yi Heng, who felt that he was about to lose his support, took his eyes off the fireball, stared at the stone bench, and drank softly in his mouth:

"Disease", I saw a fireball the size of a walnut fly out and hit the stone bench directly, but the stone bench ignited in an instant, and after a moment's effort, it had disappeared to the point that there was not even dust left.

Staring at the vacant seat of the stone bench, Yi Heng looked at the palm of his hand again, but his heart was very shocked, it turned out that the fireball technique was really so powerful, and he was now sending it out with his own hands.

It's no wonder that immortal cultivators are high up and regard the lives of mortals like mustard, you can think that if you return to the secular world now, who can resist this fireball?

A burst of dizziness brought Yi Heng back to reality, there was no aura left in the dantian, and along with the dizziness was exhaustion, as if he had just done something big that consumed all his physical strength.

He was relieved when he thought about it, dizziness was estimated to be mental exhaustion, and exhaustion was estimated to be spiritual exhaustion.

But recalling that Xu Feng didn't work so hard when he sent the fireball, it was still when he was seriously injured and was dying.

Yi Heng recalled, but when he saw that Xu Feng's face was even paler, and his fingers trembled slightly, he was sure that Xu Feng was estimated to be the same as him at that time, not to mention sending out fireballs, but he might not even be able to sit firmly.

Just like now, Yi Heng collapsed on the ground as if he had no bones, and waited for a stick of incense to recover before forcing himself to get up and meditate, and slowly cultivate the exhausted spiritual energy back.

With the breakthrough of cultivation, the soul has also become stronger, and the current cultivation time has become four hours, after all, the aura required is much more.

At night, Yi Heng finally became energetic again, and the aura consumed had finally returned to cultivation, but he always felt that something was not right.

After thinking about it for a long time, I realized that if a fireball was sent and it collapsed on the ground, wouldn't it be a narrow cut? There must be something wrong with this.

Yi Heng began to study the mantra, the finger and the output of the aura, and finally came to the conclusion after an hour, that is, there was too little aura, and the only way to increase the aura was to keep cultivating and making breakthroughs.

Or you can try to output less aura, just do what he says, and the next whole night, he spends the whole night in the fireball, and when the aura is exhausted, he cultivates the aura, and when the spirit is exhausted, he sleeps for an hour.

At the end of the day, without the urging of his soul, Yi Heng was naturally awake, although his eyes were bloodshot, the excitement on his face was obvious.

After a night of experimentation, now that the fireball was fireballed, he no longer collapsed, and he was even confident that he could reduce the aura output even more.

It's just that in this way, there are more fireballs that can be emitted, but the fireballs are also smaller, but I wonder if this will affect the power of the fireball?

With such a question, Yi Heng walked out of the courtyard, he didn't want to lose another stone bench.

When he came to the small river and looked at the flowing river, he remembered that when he first arrived here a few years ago, he was so eager to expect the fireball technique in his heart, and now he was able to send out the fireball technique at will.

It's said to be casual, but in fact, it can't be done, and if you don't pay attention to it, you will still make mistakes, but I think that after a lot of practice, it should be no problem to send it casually, after all, in my previous life, as a college student, practice makes perfect is very experienced.

Stretching out his right hand, there were words in his mouth, his fingers moved slightly, and he saw a small fireball smaller than a walnut suddenly appear above the palm, the color did not change, and a heat approached the river.

Yi Heng looked at the riverbank, there was a big stone he often sat on, but he seemed to be reluctant, and then aimed at the slightly smaller bluestone next to him, and drank softly in his mouth:

"Disease", the small fireball suddenly flew from the hand to the bluestone, when the fireball hit the bluestone, the bluestone suddenly ignited, and after a moment, the same disappeared without a trace.

It seems that this power has not changed much, but the fireball that is one size smaller is definitely not as good as the big fireball, just to be able to fire a few more times, and the aura output has to be reduced.

There are two more spells to learn, and hopefully not as difficult as the fireball technique.