Just became a godfather, and you said this is Hogwarts?

As soon as he finished speaking, an amethyst wand suddenly appeared in Erwin's hand.

Then, a spell flew directly towards Grindelwald.

Seeing this, Grindelwald was not at all panicked. He turned his wrist and grabbed a brand new wand in his hand.

Then Grindelwald also cast a spell.

It collided with Erwin's spell.

Erwin did not continue his attack.

He knew that today was not the day for him to spar with Grindelwald.

The main purpose of today is for Grindelwald to teach the young wizards.

Grindelwald looked at the young wizards and said, "When you are attacked by a spell, you can use the same spell to counter it. For example, just now Erwin used the Disarming Spell, and I can also use the Disarming Spell to counter it. In this way, two identical spells can cancel each other out!"

The young wizards nodded.

Grindelwald continued, "However, when using the same spell to deal with it, you need to pay attention to one issue, that is, magic power. If two people use the same spell, but the magic power difference is too big, there will be a situation, Erwin!"

Erwin nodded, then waved his wand and a spell was launched at Grindelwald.

Or the disarming spell.

Grindelwald responded with a disarming spell.

The next moment, the two spells collided directly with each other.

However, it is different from before.

This time, Erwin's spell directly tore apart Grindelwald's spell, and then Grindelwald's spell was directly eliminated, and Erwin's spell fell on Grindelwald's wrist.

Grindelwald's wand flew backwards and stuck into the ground.

Grindelwald picked up his wand and said, "Just like this, when your magic power is not as good as your opponent's, then your spell will be defeated by your opponent's spell!"

Hermione raised her hand. "Professor, how do we determine the power of our opponent's spell?"

Grindelwald looked at Hermione and said, "Ms. Hermione Granger, I've heard other professors say that you are worthy of the title of academic master. You can really get to the heart of the matter in just one sentence!"

Hermione said, "Thank you for the compliment Professor!"

Grindelwald said, "To be honest, it's hard to know how much magic your opponent will use before he makes a move! But there is a little trick here. For example, when I first fought with Erwin just now, we both used the same magic! This is because of this little trick. In fact, all wizards who have experienced a lot of actual combat can discover this trick. Today I will tell you what this trick is. As for whether you can learn it, it depends on you!"

After saying this, Grindelwald nodded to Erwin.

Erwin understood immediately.

Raise your arms as if you are about to cast a spell.

Grindelwald came to Erwin's side.

He tapped Erwin's finger with his wand.

"In fact, a wizard with real combat experience can judge how much strength the other wizard is going to use based on the strength of the other wizard's wand grip or the reaction of his hand! In this way, he can estimate the magic power used by the other party! In fact, this is not a secret in the wizarding world. The first lesson that the Aurors of the Ministry of Magic have to learn after entering the Auror's office is this!"

Pansy raised her hand: "Then Professor, if everyone knows this, then when two wizards fight, wouldn't it be very likely that the other wizard will know their strength?"

Grindelwald said: "So, truly powerful wizards will train people again and again to avoid these small details! I know you are now undergoing actual combat training through Extraordinary Glory, but Extraordinary Glory is a game after all, so you cannot discover many details! You need to use your own eyes and your own heart to observe every battle and grasp some details in the battle that are easily overlooked!

This is the first lesson I will teach you today! It is also something you must learn in the future. The ultimate purpose of the Defense Against the Dark Arts class is to allow you to survive in a crisis. Believe me, those who can master this trick early and hide it early will have the upper hand when facing the enemy! "

The young wizards nodded.

They are no longer the kids they were in first or second grade.

After experiencing so many things in Hogwarts, they also know the importance of strength!

Grindelwald said: "Then, next, open your eyes and use your heart to observe how real wizards fight!"

After saying that.

Grindelwald turned to look at Erwin.

Erwin's expression also became serious.

Next, it's time for him to fight Grindelwald.

Erwin takes Grindelwald very seriously.

Even in Erwin's heart, Grindelwald is stronger than Dumbledore.

The young wizards quickly retreated and left the battlefield to Erwin and Grindelwald.

The next moment, the magic power in both of them was mobilized at the same time.

As the magic power gushed out, it turned into substance.

Around Erwin, magic power was burning like a purple flame.

Grindelwald's was blue.

The magic power of both of them is terrifying, the moment they burst out with magic power.

All the professors and students in Hogwarts who were in class sensed it.

A group of professors hurried to the window.

I could just see Erwin and Grindelwald confronting each other in front of the castle.

In the Transfiguration classroom.

Professor McGonagall smiled and shook her head.

She could guess what had happened.

It's nothing more than Grindelwald teaching students, but the way of teaching is very special.

Professor McGonagall had no intention of stopping him. In fact, she was also very curious about Grindelwald's strength and Erwin's current strength.

Two brave students sneaked up to the window to see what was happening.

Professor McGonagall did not stop it.

At this point, the other little wizards also became bolder.

I came over and planned to watch the fight.

The same scene occurred in all the classrooms at Hogwarts where classes were in progress.

The professors did not stop him.

Instead, he stood by the window and watched the fight.

In the air, Dumbledore, who was the first to feel the fluctuations of the two people's magic power, was suspended in mid-air.

Excited to watch a big battle!

He also wanted to know how strong his old lover had become after all these years!

Erwin and Grindelwald naturally noticed the gazes around them.

Grindelwald smiled and said, "It seems that many people are paying attention to us, Erwin!"

Erwin spread his hands: "Yes, after all, Your Majesty, your reputation is really great!"

Grindelwald said, "Are you bragging about yourself? Erwin, there is no need for us to test each other! Let me see your strength!"