"The more difficult the challenge, once successful, the more terrible the achievement......" Rather than explaining to the young mage next to him, Owen was more like looking at the girl under the ring and muttering to himself.

"And he succeeded in the end?" The young mage asked very cooperatively.

"Of course, otherwise, how could there be a shadow blade that would later become famous in the mainland?"

"Power and speed can't coexist at the same time, and he had to admit that reality after many experiments." Owen said, looking at the ring in the distance.

"Then teacher, how do you say that he succeeded?" The young mage wondered.

"The fact that power and speed cannot coexist does not mean that he has failed, which is also a blind spot in our habitual thinking......"

"Let's put these questions aside and go back to the beginning of the questions, why do you want to be more powerful? Because it needs to burst out in an instant to break the shield, and increasing the attack power requires increasing the strength, but ......" Owen chuckled as he looked into the distance.

"It's not the only way, and increasing your attack doesn't necessarily require more power."

"His idea is very simple, why is the blade sharper than the back of the knife?" Owen finally withdrew his gaze and asked as he looked at the young man beside him.

"Do you need to ask about this? Of course, the blade is sharper than the back of the knife......" The young mage had a 'Teacher, you're so strange'.

"Do you know why?" Owen chuckled.

"This ......," the young mage couldn't answer for a moment.

"Let you read more books when you are usually fine, this knowledge has been taught as early as the elective course "Physics I" in the general curriculum of the seventh grade! Really! Since His Majesty Austin I was able to create it and write it into the book and ask us future generations to learn and pass it on, there must be a reason for him, you know all day long that it is better to memorize these knowledge points and learn these general courses than to memorize a few more magic spells, which is really a mouse's eye! Owen snorted coldly.

"The sun rises in the east and sets in the west, objects fall, water extinguishes fires, etc., etc., these are all common sense in our lives, we all know things, but who ever thinks about why?"

"His Majesty Austin I once said, 'The desire to learn is the driving force of human progress', perhaps it is because His Majesty Austin I has always maintained that curiosity and has always explored these hidden truths in life that he can be so erudite and powerful?" Owen sighed.

"Go back and copy Physics One to me a hundred times, and give it to me by next week. It must be written by hand, and you are not allowed to use magic or anything to be opportunistic, of course, if you can hide from me cheating, it is also a skill. Owen glanced at the young mage with a bitter face beside him.

"In Physics I, the chapter on 'Pressure' explains this imagination very well, oh, forget that you guy didn't read the book well...... A hundred times! Remember! Next week! Owen re-emphasized and went on to explain.

"To put it simply, under the same force, the smaller the contact area, the greater the force on that contact surface, generally speaking, for example, if we want to penetrate a black stone wall that has not been reinforced by magic, then if we use the fireball technique to blast it side by side, ten will definitely not be able to penetrate this wall, but if the ten fireball techniques are very accurately controlled, and all hit the same point, then we can penetrate this wall."

"It's a little bit inappropriate, but that's probably what it means, hateful...... I hate talking to stupid people the most, and it's annoying to say something, and there are examples......" Owen frowned, and looked at his expression as if he didn't think the punishment he had said was enough......

"That is to say, concentrate on attacking a point, the smaller the contact surface, the more concentrated the force, and the higher the damage to that point? That's why the blade used to attack is thinner than the back of the knife...... "The young mage wittily answered before Owen could speak.

"Oh...... Not bad...... I also know how to draw inferences...... "Owen clicked his mouth, and he was going to add another fifty punishments just now......

"Shadow Blade's move, known as a famous skill that can easily penetrate all shields, actually uses this principle, after he himself integrates this principle into his own martial arts, that move of martial arts, in fact, the form of attack is a thrust under high speed, using the tip of the knife, which is the most concentrated point of power......"

"It's just a simple spur, but in fact, there are a lot of things involved, the burst of movement speed, the skill of stabbing in all directions, the instantaneous explosive power of the arm, and the specially configured weapon, Shadow Blade's dagger, engraved with two magics, namely the buff magic of the Holy Rank 'Solid' and 'Penetrating', which increases the hardness of the dagger and the attack power of the spur."

"Then with the strength of that shadow blade, he can ignore the shield, and the warriors are in danger, so isn't the magician vulnerable in front of him? It's invincible......" the young mage sighed.

"He's invincible, what's the matter with us." Ignoring the solemn status of the leader of his own courtyard, Owen rolled his eyes at the young man beside him.

"Just because you can ignore the shield doesn't mean you can ignore any defenses! Wizards have more to defend themselves than just magic shields! There are also walls of fire, earth walls, and the guardian of light, but it really doesn't work, can you call a few elemental giants to block it? ”

"Besides, you thought that kind of attack that broke the shield in an instant could be used casually? Based on the strength of the girl just now, I estimate that this attack can only be used five times at most! Although the martial art created by Shadow Blade can break through the shield in an instant, the consumption is also very large, and there is no perfect thing in this world. ”

"That'...... Why is the introduction of Shadow Feng in the book 'Even a Saint-Rank master is unwilling to provoke'? If the Saint-rank master is not willing to provoke, the combat power must be stronger than the average Saint-rank master, right? The young man asked.

"Shadow Feng was originally a holy order, but it doesn't matter, the most annoying thing about that guy is that he looks like a ghost all day long, a guy who is already good at speed, runs faster than a rabbit, provokes him, and he doesn't dare to sleep at night. Because even if you put up the magic shield and sleep, it's useless. Owen pouted.

"That...... Teacher ......"

"Huh? What's wrong? ”

"I always feel that the teacher seems to be very familiar with that shadow blade, you see, whether it is a magician or a martial artist, the self-created moves will not be easily told to others, and you know some of his characteristics, and even his personality seems to know ......" It seems that the gossip soul of the young mage is burning.

"You want to know?" Owen looked at the young man beside him and smiled.

"Yes." The young mage nodded.

"I won't tell you."