Hogwarts Summoning Guide.

Seeing the power of the Shadow Bolt just now, and then seeing the spectacular sight of dozens of Shadow Bolts being summoned at the same time, many students were so frightened that their legs went weak. It was like during military training, you thought the instructor was going to take you to shoot at a rifle, but the instructor said, "Let me demonstrate a rocket launcher for you first."

However, Bai Lin did not let the Shadow Arrow Rain be launched, because there was really no target big enough for him to hit. He promptly shouted "Stop the Curse!" to dispel the shadow energy.

"If I were a dark wizard, even without using the three forbidden spells, just using this kind of shadow energy, do you all know how to defend against it?" Bai Lin asked.

The students looked at each other in bewilderment. Even Hermione, who had thoroughly studied the textbook, did not have a suitable method to defend against such a large-scale attack of shadow arrows.

Just then, a student raised his hand. Bai Lin looked and saw it was chubby Neville. He probably only dared to raise his hand in his own class. Bai Lin nodded, and Neville said, "Professor, don't dark wizards all fight using the three forbidden spells?"

Bai Lin said, "Classmates, while the three forbidden spells are indeed terrifying dark magic, each with its own effects, I believe you have all heard many legends about them since you were young. However, if a magical war breaks out, or if you get involved in a war among Muggles, you will find that various dark magic spells that are no less powerful than forbidden spells can produce great destructive power, such as the magic cannons that bombarded Hogwarts Castle some time ago."

"How can we defend against these offensive dark magic spells?" Harry asked. "These things don't seem to be in our textbooks."

Bai Lin said, "I believe many of you feel that wherever there's a spear, there's a shield. When you encounter a black magic attack, you should think that, like when you encounter an evil creature, there's a white magic spell that can most effectively counter it, just like using the Patronus Charm against a Dementor. However, unfortunately, in real combat, there isn't such a simple counter-spell. If the opponent throws scissors, you can throw punch; if the opponent throws punch, you can throw paper."

Bai Lin paused and said, "For example, the three forbidden spells have not yet found an effective way to defend against them. For example, the Shadowfiend, Shadow Bolt, and Shadow Bolt Rain that I used before are not as effective as any white magic. They can achieve twice the result with half the effort. But I can teach you three ideas. The first idea is to deflect attack spells. Aurors use this method to fight against dark wizards."

Hermione raised her hand high, and Bai Lin nodded. Hermione said, "But Professor, deflecting attacks requires extremely high magic power and reaction speed; only a very few adult wizards can do it!"

Bai Lin nodded and said, "That's right. If you knew this, you could go directly to take the Auror exam. Does anyone know a second approach?"

"Get out of the way!" Harry suddenly snapped to attention and shouted. He didn't raise his hand, but he received Bai Lin's approval.

Bai Lin pointed at him and said, "Harry is right. Dodging is the most effective Dark Magic defense spell. It works regardless of your grade or how many spells you know. I believe you can understand this from my experience fighting the Death Eaters a few days ago. I used the speed of my broom to successfully dodge at least ten Killing Curses. If I had stood there stupidly and fought them head-on, I probably wouldn't be here giving this lesson."

The second half of today's lesson will involve me blindfolding myself and pretending to be a dark wizard, while you are the prey I'm hunting. I will randomly launch attack spells with 75% reduced power. Students who haven't been hit by me by the end of get out of class will get 10 points, and those who successfully subdue me will get 50 points!

Ron pointed to the mannequin that had been blown to pieces and said, "You mean this is what it's like when the power is reduced by 75%?"

Bai Lin smiled at him and said, "Don't worry, Ms. Pomfrey's cooking is excellent!"

Catherine rolled her eyes at him and said to the students, "Don't be scared by him, everyone. I'll increase the power of the magical rain shield; it won't cause any major damage. Also, I can remind you of the third idea—many white spells can also be used as offensive spells, especially when there are many of you!"

Without further ado, Bai Lin had the students disperse, took out a handkerchief, blindfolded himself, and at the command of Catherine, who was acting as the referee, the second half of the class began.

Seeing that Bai Lin's eyes were covered, the students, thinking that defeating him would earn them 50 points, some of the bolder ones approached, intending to use a disarming spell to knock Bai Lin out instantly. However, when a fifth-grade boy shouted, "Ix..." Bai Lin had already waved his wand and shouted, "Shadow Arrow Rain!"

Instantly, dozens of light black arrows formed and shot out indiscriminately in all directions around Bai Lin. The boy who had just shouted the incantation was the first to be hit by an arrow. Although it was a shadow arrow that Bai Lin had deliberately reduced in power, it still caused the boy to fall down on the spot, foaming at the mouth.

Catherine waved her wand just in time, moving the boy to a corner of the classroom and casting a healing spell on him, thus eliminating him from the game.

The first wave of Shadow Arrows hit four students, mostly in the hands and feet, causing them to scream in pain. If Malfoy were there, he would definitely be yelling things like "I'm going to die!" However, most of the students present today were Gryffindors, and none of them were willing to back down.

Before Catherine could drag the wounded away, Bai Lin's second wave of Shadow Arrows arrived. This time, no student dared to attack. Everyone tried to hide as far away as possible. The more agile students, such as Harry and Dean, kept a close eye on the direction of the Shadow Arrows and immediately looked for a way to dodge. Ron and Neville, who were not as athletic, hid behind their desks and even began to pile them up to form a fortification to block the attack.

Harry successfully dodged the second volley of arrows, and in doing so, he pushed aside the slow-moving Hermione. He leaned close to Hermione and asked, "Hermione, is there any way to fight back?"

Ron wasn't so lucky. A Shadow Bolt hit the desk in front of him, blasting it into pieces. Ron rolled on the ground, probably feeling terrible, but at least he wasn't eliminated immediately.

Hermione's mind went blank for a moment, and she stammered, at a loss. Just then, Cho Chang leaned over and said, "Professor, you're quick. The Disarming Charm needs to be cast at close range. I'll create an opportunity for you; see if you can get close!"

Harry and Cho Chang were rivals on the field, but they were already quite good friends in private. Harry nodded to her, and at Cho Chang's signal, two fourth-year girls who had come with her to audit the class quickly followed her around to the other side of the classroom.

"I'll cover you too!" Nawi said. He used a levitation spell to throw the scattered desks onto the ground, making noise to provide cover for the others.