Before Hei Yu could react, Yun Lan began to demonstrate. With a flick of his fingers on the staff, a crisp and pleasant wind whistle sounded, and the left and right points instantly connected into a line, and a silver-white wind blade cut away at a speed that surpassed all else.

Black Feather's eyes didn't dare to blink, if it weren't for the blessing of his demon eye, he wouldn't have been able to see the moment this move was formed.

In the next picture, tens of thousands of demons within a radius of 100 zhang were cut off in an instant. The wind blade continued to move forward, leaving no armor in its reach, until it reached a mountain peak thousands of zhang away in the distance, and with a "boom", the upper part of the mountain peak was cut and tilted downwards along the middle section, and the birds and beasts flew in shock.

Not only Black Feather, but all the mages on the battlefield were stunned, because the demon in front of them suddenly stopped moving, and their bodies were split in half. A battlefield infested with demons was swept away with one blow!

"This ...... This is the strength of the Holy Mage-level ......," Black Feather said tremblingly. He looked at the sliced mountain in the distance, and it took a long time to recall: "It's too strong!"

"Sure enough, it's the Wind Blade Yunlan, the treasure knife is not old, and it lives up to its reputation!" the others said.

It wasn't until the light wind roar on the white crystal staff dissipated that Yun Lan retracted his stance, and he turned his head to face Black Feather:

"This is my wind blade, do you want to learn it?"

"Of course! Such a large attack range, cut in an instant, Dean Yun Lan, does this mean that no one can dodge this blow?"

Yun Lan nodded, "Almost." I've only been defeated once in my life, and of all the opponents I've met, only one survived this blow......" He had mixed feelings as he recalled the past, "but it's okay not to mention it." ”

"Defeated only once in your life?"

Although Hei Yu couldn't know the specific situation, he could also guess how talented and high-spirited Teacher Yun Lan was when he was young.

"Dean Yunlan, you probably want to teach me this trick!" Black Feather was so excited that he wanted to jump up.

Yun Lan turned her back and coughed quietly, thinking in her heart: "Alas, with my current physical condition, I have already consumed my mana to the limit with just one blow...... It seems that the body is really not as good as it used to be. However, with the occasional blow, I still have the strength to support the scene in front of the students. ”

"Ahem," he said, "there are so many people here, let's change places, and if you want to learn, come with me." ”

"Great!"

Black Feather followed with a hippie smile, Yun Lan took a few steps, and rode the wind to fly, flying against the wind, Black Feather also staggered to stand firm under the support of the wind, and soon a red clay desert was far from his feet.

Yun Lan flew a long distance and landed in a barren desert with a surface color close to white.

The light of dusk shines obliquely, far from the magma of the doomsday volcano, and although it is also a desert, the temperature is not high, and it gradually becomes cold as the sun sets in the west.

"This desert is called the Burning Bone Desert. The reason why the surface of the earth is white is because the bones of the ancient-level demons after they died dissolved in the sand. In the range of the Red Earth Desert, there are at least a dozen such Burning Bone Desert areas. ”

"After the death of an ancient-level demon, it changed the landscape of a desert?......" Black Feather looked at the huge skeletons scattered around him, and felt incredible.

Yun Lan swung her staff and formed a hemispherical wind shield along the edge of the surrounding Burning Bone Desert, enveloping the two of them in it, and at the same time concealing her aura and preventing the demons from approaching.

"Alright, now, show your full strength, and let me see how powerful your attack is. ”

Yun Lan retreated to the side of the field and motioned for Black Feather to start.

Black Feather hesitated for a moment, then skillfully opened the second seal.

He grasped the Shura Wood Staff in his right hand, grabbed the wrist of his right hand with his left hand, and a black wind swirled from under his feet, the blood color of his whole body began to boil, and the black-red tenacity covered his skin in a flash.

Since Yun Lan did not hesitate to teach, he had nothing to hide, he didn't want to miss this training opportunity, and he was determined to go all out.

Under the opening of the second seal, the violent dark power enveloped him like a flood that burst the embankment, and the phantom of a pair of demonic eyes appeared above his head.

Teacher Yun Lan was not as surprised as she imagined, and said lightly:

"There is too much energy escaping from the outside of the body, and if you can concentrate on one point, you can have a better attack effect. ”

As he spoke, he changed the wind in his hand into various forms and showed it to Black Feather. Barriers, whirlpools, spears, spirals, blades......

"What you need to master now is precise control of power, and if you don't do that, you won't be able to hit the strongest slash. ”

He casually threw out a mana, forming a hemispherical barrier ten zhang away in front of the black feather, and the wind on the barrier flowed rapidly.

"Let's try to break down this barrier. ”

Black Feather's expression became serious.

"Magic Light Slash!"

This was one of his most common attacks, and after the black arc light landed on the wind barrier, it was immediately dissipated by the flowing wind, like a mud cow entering the sea.

"This ......"

Black Feather looked at Yun Lan, who motioned for him to try again.

"Since the Demon Light Slash can't break this barrier, let's try a stronger move, even if you use all your strength this time, you have to break the barrier!"

He gripped his staff again, and the ripples of power shook through the ground, smashing into layers of sand and rolling up dust.

"Dark Storm!"

After the accumulation, there was a more powerful explosion, and a thick dark force poured out of the staff, forming a whirlpool in the air, and like a turbid wave, emptying and rushing towards the barrier of wind.

"Hmm...... It's strong......" Yun Lan said.

However, after the Dark Storm rushed towards the Wind Barrier, it was quickly dispersed to the sides by the air flow on the surface of the barrier, and no matter how powerful his attack was, it could only cut the water with his sword, and could not shake it in the slightest.

He began to get anxious, and continued to inject mana to increase the power of the Dark Storm, but to no avail. After a few more attempts, his mana continued to drain, so he stopped.

"Ask the teacher for advice. ”

"Your move is very powerful," Yun Lan affirmed first, "If it is an ordinary barrier, it will definitely be broken by this blow." However, this move is useless against a flowing wind barrier, or an opponent with very strong defense. Remember my Wind Blade?"

"Oh...... Remember. ”

Yun Lan picked up the staff again, condensing a flat wind whirlwind at the top of the staff, spinning at extreme speed, and then quickly compressing, the speed of rotation became faster and faster, the wind whirlpool became thinner and sharper, and finally there was a piercing sound that cut through the air.