Draco Malfoy, from the pure-blood Malfoy family, his father is a contemporary head of the family and has a lot of influence in the wizarding world.

In the Harry Potter series, he appears second only to the main trio.

In the words of Aunt Rowling, this is a handsome teenager who is eager to express himself and not have a bad heart.

"Still have questions, Draco?" Wang Xu stood on the podium, looking into Draco's eyes.

Draco shook his head slightly, sat down without saying a word, and looked at the blackboard with his hands on his chest.

Wang Xu retracted his gaze, held the teaching stick in his hand, pointed to the first item on the shelf, and said: "Type 72 anti-infantry mine, 8.8 cm in length, plastic shell, anti-metal detection color, explosion range of 14 meters, containing 650 steel balls, can be fired out in a fan shape at the moment of explosion."

In the Muggle world, mines are an important part of fortifications, and they are effective in organizing infantry invasions. Suppose a Death Eater invades your house, and if he unknowingly steps on this anti-infantry mine, this mine will send him to the sky. What's more, at the moment in the wizarding world, there is no magic to detect mines, which is somehow invulnerable. ”

"Professor, what if the other party invaded and rode a flying broom?" A student stood up and asked Wang Xu.

The teaching stick in Wang Xu's hand moved to the side, pointed to the bazooka on the second shelf, and said indifferently: "RPG-18, codenamed Fly, Soviet goods, reliable performance, durable leather." With a long-range sight and an effective range of 800 meters, the rocket will fly to the target at a speed of 338 meters per second the moment you pull the trigger. The fastest broom on the market today is the Firebolt 2, which can reach speeds of 150 miles per hour, or 67 meters per second.

The rocket is five times faster than a firebolt, and within three hundred meters, it only takes a second to hit him the moment you aim at him and pull the trigger. If the distance is closer, it will be easier, from launch to hitting the target within a hundred meters, it only takes 0.3 seconds, and in such a short time there is not even a chance to react. ”

Speaking of this, Wang Xu took down the bazooka and said with a smile: "I'm just talking about data, many people who are born in wizarding families and have no contact with Muggle society may not understand its power, now I can perform it for everyone." ”

Wang Xu walked to the window with a bazooka and motioned for the students to come and take a look.

Hundreds of young wizards, one by one, gathered around him, craned their necks to look out.

"Our classroom is on the second floor, and if you look into the distance, downstairs is the playground for flying lessons, and 600 meters beyond is the Quidditch training ground. I'm going to target the tower of the Quidditch Training Ground, and you're going to take a look. ”

Wang Xu raised the bazooka, locked onto the tower through the scope, and slammed the trigger.

Sou!!

Rumble!!!

At a distance of 600 meters, the rocket only takes 1.5 seconds, and when you pull the trigger on this side, it has already hit that side.

As soon as the hit tower exploded, a fireball rose from the explosion.

Wang Xu put down the bazooka with a smile on the corner of his mouth.

The little wizards around him, one by one, grew their mouths, and even Professor McGonagall, who came to see him in class, subconsciously gasped.

"Powerful Demolition Charm, can it have such power?" A pure-blood wizard who had never seen a bazooka couldn't help but ask his companion.

His companion shook his head slightly, the powerful blast spell could blow up a wall, but it couldn't blow the entire tower away.

Moreover, the powerful blasting spell is a relatively advanced magic, which can only be accessed by students in the sixth and seventh grades, and it is good to have one of the ten wizards when they graduate.

"Bazookas appeared to strike at local light armored vehicles, as well as low-flying helicopters. In the case of the model I have in my hand, it can penetrate 375mm of armor head-on, which means that hiding in a house is absolutely not a good idea, and if a rocket explodes in the room, the shock wave can knock you to death. ”

Wang Xu turned around and returned to the podium, put the bazooka on the wooden stand, and picked up the AK47 assault rifle again.

"This is an AK47 assault rifle with an effective range of 300 meters, a conventional magazine equipped with 30 rounds of bullets, and a 75, 100, and 120 round bullet drum can be used to increase firepower, and the rate of fire is as fast as raindrops."

Wang Xu picked up the AK47 rifle, looked at Professor McGonagall, and asked, "Professor McGonagall, can you cast an armor talisman spell on the blackboard?" ”

Professor McGonagall looked around and saw that the young wizards were all looking at her, with a look of anticipation in their eyes.

"Okay!" Drawing her wand, Professor McGonagall pointed forward and whispered, "Armor!" ”

Swish!

White light erupted from the tip of the wand, circling around the blackboard on the podium, forming a translucent shield.

Wang Xu waved his hand to signal the students around him to stand back, and when everyone withdrew five meters away, he opened fire with an AK47.

Da Da ...

Bullets rained down, and empty shells flew out of the bullet holes and landed on the ground with a crisp crashing sound.

When the first bullet hit the blackboard, the armor charm glowed white, quickly fending off the bullet, followed by a second, a third, and a fourth.

When the fifth bullet hit the blackboard, the armor charm was directly pierced, and even the blackboard was shattered.

"Wow!" There was an exclamation in their ears, and many young wizards looked incredulous.

Wang Xu knew that it was a talisman shattered by five bullets, but in the eyes of the little wizard, the shield was shattered between the tongues of lightning and fire.

The fact is also that with the firepower of the AK47, a 30-round magazine can be emptied in one second.

It also means that in the event of a sudden attack, a wizard who casts a talisman spell on himself will be shattered in an instant if he lasts less than 1 second in front of AK47, and then will be beaten into a sieve by a rain of bullets.

"The strength of the armor charm depends on the caster's magic level, and Professor McGonagall, as the vice principal, her strength is undoubted in the wizarding world, so her armor charm is stronger than the average person."

Wang Xu held the AK47 in one hand, his eyes fell on Harry in the crowd, and said with a smile: "Harry, bless the talisman for the table on the podium." ”

"Armor protection!" Harry pulled out his wand and shielded the table.

Wang Xu pointed to the table, and under the gaze of many little wizards, he began to shoot at the table.

With the first bullet, the talisman spell is perfectly defended, and with the second bullet, the talisman begins to dim.

With the third bullet, the shield disappeared and the table was pierced.

Wang Xu lowered the muzzle of the gun, showed the bullet holes on the table to everyone, and said: "Harry's talisman charm can withstand two bullets, and the third shot will be pierced." This shows that Harry's talisman is a bit worse than Professor McGonagall's, and the difference is that it takes five bullets to break through the shield, and one only needs three bullets. ”

Speaking of this, Wang Xu's tone paused slightly, and he asked again: "Does anyone else want to try?" ”

"Me!" A wizard from a Muggle family took the initiative to stand up.

Wang Xu first asked him to cast a talisman charm, and then used AK to shoot at the point.

In just one moment, the shield was pierced and hit the chair where the amulet had been cast.

Wang Xu picked up the chair and looked at it, the bullet marks on it were very light, and even the wooden board had not penetrated, obviously when breaking through the talisman spell, the projectile had exhausted the impact force.

"You can circulate it, this is a fourth-year student with a magic level comparable to most of you, and this is the result of his talisman against a hot weapon." Wang Xu handed the chair to the classmate and asked him to show it to everyone.

Hundreds of students gathered around to watch, and some of them were puzzled and asked, "Is there such a big gap between Kolacha and Harry?" Harry's talisman had blocked two bullets, and the third had been pierced. It's unbelievable that the talisman of Kolacha didn't block it at all. ”

There was a lot of discussion among the students around me, and I couldn't figure out why.

Wang Xu clapped his hands to signal everyone to be quiet, and explained: "Harry's magic level is close to the level of an adult wizard, and his strength is no less than that of an ordinary wizard, and it cannot be regarded at the level of a sixth year. ”

The experiment continued, and the students in grades 4, 5, 6, and 7 all came on the field to test the strength of the talisman charm.

Basically, the talisman of the fourth and fifth grade students can be defeated with a single bullet, the difference is only that after defeating the talisman charm, whether it pierces the table and chair or not.

The sixth and seventh grade students are better, their talisman can basically resist one bullet, and the talisman will only shatter when the second bullet occurs.

Some of the few elites were able to defend against two bullets like Harry, and only the third one was broken through the shield.

No further up, and even Professor McGonagall stopped Aurora Sinnista, an astronomy professor passing by the hallway, for the test.

As a professor, Aurora's talisman only blocked three bullets, which was better than Harry, who blocked two, and not as good as Professor McGonagall, who blocked four bullets.

"It's question time, so you can raise your hand and ask questions."

Wang Xu stood on the podium and looked down, many young wizards raised their hands, among which Hermione's hand was the highest, so he smiled and said, "Hermione, what's your problem?" ”