Seeing Lin's strange movements, Alok was frightened and took a step back, but soon found that there was no fire or frost coming out, and he was not attacked at all.

"What is the professor doing?" Pierce was also confused. He couldn't be threatening them, right? "This should be some new magic!" Johnny guessed, then looked at the two of them and spoke very quickly. "Our only chance is to use offense as defense. This time, I will be the main attacker and you will assist!"

The two men nodded without any other ideas. When they were about to cast a spell again, their bodies suddenly paused. Alok's face became extremely ugly, and he fell to the ground without warning.

Pierce and Elroc beside him behaved in the same way, with their right hands tightly clutching their chests, veins bulging on their foreheads, as if they were in great pain.

Johnny's condition was slightly better. She barely supported her body and avoided falling to the ground. She felt as if her heart was being pinched by someone. It beat in rhythm with the trembling of Lin En's fingers, sometimes as fast as thunder, sometimes as slow as mud and sand. This strange and uncomfortable feeling instantly deprived the girl of the ability to resist.

The brain also became dizzy due to blood supply problems. After about two or three seconds, this feeling gradually subsided, but the next moment the lungs and liver were attacked in the same way.

"I surrender, I admit defeat!" Alok, who was lying on the ground, kept twitching and shouting loudly, with a look of fear on his face.

Seeing that the three people had reached their limits, Lin En stopped releasing new magic to avoid any side effects.

It took Johnny, Elrod, and Pierce several minutes to recover. They looked at Lynn with fear and dread. They almost thought their hearts were about to explode, but they had no idea where the attack came from.

"Professor, what kind of magic did you just cast? Some kind of curse?" Alok asked in shock. This strange magic even reminded him of the curse witchcraft that was widely circulated in the wizarding land.

"Of course not!" Lin En shook his head in amusement, keeping the question in suspense and not intending to explain.

In fact, the principle of this magic is to use the resonance phenomenon. Scientifically speaking, it is the tendency of a physical system to absorb more energy from its surrounding environment at its natural vibration frequency.

According to the terminology commonly used by wizards, everything in the world is made up of elements, and they all have certain inherent frequencies. When the frequencies of two objects tend to be consistent, they will affect each other.

For example, the average resonance frequency of the human body is 7.5 Hz, and each part has its own resonance frequency. The internal organs are 4-6 Hz, the head is 8-12 Hz, and so on.

Lynn's method is to create a miniature magic wave, making the vibration as close to the frequency of the heart as possible, thereby triggering a resonance phenomenon, causing the amplitude and frequency of the heart to suddenly accelerate, causing damage from the inside.

Not only is this magic difficult to detect, but the attacks act directly on the molecular and atomic levels, making it difficult to defend against unless one is prepared in advance.

However, in the experiment just now, Lynn also realized that a formal wizard like Johnny could withstand resonance magic much better than the two apprentices, Alok and Pierce.

Although he intentionally reduced the power of magic to avoid casualties, it can be seen that it is not an easy task to use the principle of resonance to directly kill those powerful wizards. It is good enough to cause a slight impact at certain important moments.

Johnny and the others were extremely curious about this strange witchcraft that seemed like a curse, but seeing that the professor had no intention of revealing anything, they could only suppress their curiosity and ask.

"What about the magic that defended against fire and ice?"

"That's called a deflection field!" Lin En did not hide it this time.

"Deflection force field? Isn't that a fourth-ring magic? Professor Lin En, have you broken through to the realm of a great wizard?" Philip, who had been watching from the sidelines, said in surprise and excitement. Being able to use force field magic freely is one of the signs of a great wizard.

Johnny, Alok and Pierce also looked at Lynn in surprise.

No wonder such a powerful explosion just now couldn't do anything to us. It turned out to be a four-ring magic. This deflection force field is just like a turtle shell, leaving people helpless.

"No, it's not." Lin En shook his head, denying the speculation of Phillip and others, and then said with a smile. "It's just a trick. I named it [Secondary-Deflection Field], which should belong to the upper three-ring magic."

After calculating the gravitational constant, although it can effectively reduce the difficulty of performing force field magic, the [Deflection Force Field] was originally only cast by great wizards. Due to the gap in magic power and computing power, the protective effect is naturally not as good as the original version and can only be classified as inferior.

Moreover, force field magic is not invincible. Matter and energy themselves can affect time and space, so it is possible that it can be broken by those powerful spells.

The second issue is the magic consumption. Even if the usage requirements are lowered, the consumption of magic power is still extremely terrifying. Even when the magic power is at its most abundant, it can only last for a short fifteen seconds.

The strange resonance magic that Lin En just released was a by-product of his research on force field magic.

Previously, when fighting with Hellram in the Howling Tower, the opponent had released a ripple magic with a very wide range. In order to avoid this magic, Lin En was almost pierced into a hedgehog by the flying iron thorns.

He was deeply impressed by this, and these days he had been thinking about how to combine this ripple magic with force field magic.

Through a very strong magic wave, the curvature of space changes, making time and space vibrate like water waves, thus breaking through the enemy's defense and killing the enemy from the spatial level. Lin En named this expected magic [Space Vibration Wave]! However, from the principle of magic, it can be seen that it is at least a fourth-ring or even a fifth-ring magic. Lin En's several attempts have ended in failure. With his current computing power and magic reserves, it is definitely not enough.

Unless I can use the computing power of others to temporarily break through my own limit like I did before, maybe I can reach the minimum standard for releasing this magic...

(End of this chapter)