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Iron Crystal Ore, a ninth-grade ore, is extremely hard and can be used as the main body of forging divine weapons, and usually, this ore is used for forging fourth- and fifth-grade divine weapons and equipment. Pen | fun | pavilion www. ｂｉｑｕｇｅ。 ｉｎｆｏ

The Iron Crystal Deposit occupied by the Ironback Demon Dragon is located on a hill next to the Putrid Swamp, a well-known and dangerous place where many cultivators have died for thousands of years trying to explore it.

Relatively speaking, the area where the iron crystal mine is located is safer, and the iron-backed demon dragon has only occupied this place for a hundred years, and it is said that it comes from this putrid swamp, and it uses the iron crystal ore as its own granary.

This iron crystal mine has a large amount of iron crystal ore, and it is a mine worth developing, but it has not been developed for a long time because of this ironback demon dragon.

Stepping into this area, a thick sour and rotten gas spontaneously emerged, which was the breath from the putrid swamp not far away, where it was said that there was a god-level powerhouse who cultivated the way of corrosion, and what was originally a low-lying land instantly turned into a putrid swamp.

There are basically no demon beasts below level five in this area, and the ones that appear are either three-winged demon snakes or eight-legged iron lizards, but these five or six-level demon beasts have learned to be obedient after being ruthlessly killed by Lei Zhen, and their kind only dare to look at Lei Zhen and Wei Qiu from a distance, and they don't dare to approach at all.

When the Iron Crystal Mine arrived, in addition to the sour and rotten gas, it was a strong ore breath, and when he had not yet broken through the Earth Martial Realm, Lei Zhen would definitely be so excited, because the early condensation of the Zhentian Divine Body had to use energy such as ore, but now this Ququ ninth-level ore was no longer attractive to him.

"Brother Lei Zhen, how are you going to deal with this iron-backed demon dragon?" Wei Qiu asked.

"Tell it to come out, and hit it directly. Lei Zhen said and took out the Purple Moon Knife, the purple sword light shone, and he blasted directly towards a huge rock on the top of the mountain.

"Huh?" Wei Qiu was stunned, she didn't expect Lei Zhen to face off against this iron-backed demon dragon head-on.

"Boom!"

With a bang, the boulder was shattered with a knife, and the sleeping iron-backed demon dragon was awakened.

"Roar!!"

The iron-backed demon dragon let out an angry roar, "Who is here to disturb the rest of the deity?!"

It rushed out of its nest deep in the mine, a pair of scarlet eyes looking around, and it glared fiercely, targeting Lei Zhen and Wei Qiu.

"Human monk, it's you again, huh?" The iron-backed demon dragon was slightly stunned, and couldn't help laughing, "Ahahahaha, two human monks from the Tianwu Realm dare to come to my iron crystal mine, so bold, but it's too stupid, I'm a little hungry, so I'll use you to satisfy my hunger!"

"It's just a little lizard, and it's ridiculous to call itself a dragon. Lei Zhen sneered, and the Purple Moon Knife in his hand slashed, and the killing intent sword light directly blasted over.

"Look for death!" "The iron-backed demon dragon was furious, it hated it the most in its life, some people said it was a lizard, and today it was mocked by a small Tianwu Realm human, how could it not be angry?

It crawled straight forward, ignoring the murderous intent sword light that blasted at it.

"Bang!"

The killing intent sword light exploded on its body, although the energy was strong, but the body defense of this iron-backed demon dragon was stronger, and the sonorous sound was everywhere, and its body surface flashed a metallic luster, and the killing intent sword light could not break through its defense.

"You go over there. With a push of Lei Zhen's palm, he sent Wei Qiu to the rock not far away, and his Zhentian Divine Body exploded and headed towards the iron-backed demon dragon that rushed over.

"Boom!"

The two collided, Lei Zhen flew out upside down, and the ironback demon dragon also took a few steps back.

"Hmm, this human Tianwu's body is so strong?" the iron-backed demon dragon was surprised.

The thunder exploded violently, and the knife was blasted again, and the iron-backed demon dragon still did not dodge or dodge, allowing the purple moon knife to slash at him.

"Stupid human, but in the Heavenly Martial Realm, even if you are a physical cultivator, you will not be able to break through my defenses!" the iron-backed demon dragon shouted, the scale armor on its back flashed with silver light, and its hardness increased.

"Boom!"

The back armor of the iron-backed demon dragon exploded, and a knife mark was faintly visible, it was stunned, why was it cut out of a mark after strengthening its scale armor defense?

Lei Zhen's eyes showed a cold light, the slash just now was a seventy percent power of the imperial sword, one slash, indestructible!

It's just that the defense of this iron-backed demon dragon is really strong, and the seventy-percent strength of the Imperial Sword is still a little worse.

This giant steel lizard twisted its body and pressed directly towards Lei Zhen, it was respected as a seventh-level demon beast, and majored in the body, feeding on iron crystal ore every day, the defense strength of the body was quite high, even the existence of the same level or even a little higher than its realm could not break through its defense, this little Tianwu actually cut out a mark on its back armor, which was really unforgivable.

"Die, damn human!" it roared, and countless spikes burst out from its back armor, which flashed with cold light, each of which was extremely sharp, and on the top of the spike, there was a small hole, as long as it hit the target, it would spew venom, which was very terrifying.

Lei Zhen shouted, the Zhentian Divine Body exploded, and the iron-backed demon dragon's blow was unavoidable, so he could only force it.

The spiked back armor slammed into Lei Zhen's body, and a powerful piercing intent struck, which was bound to break through Lei Zhen's defense, but the golden light of Zhentian's divine body shone brightly, and he carried this fatal blow down, and the spikes could not move forward just by piercing into the golden light, let alone piercing Lei Zhen's body.

"Bang!" The iron-backed demon dragon shook violently, and the thunder shook sideways, and he spurted out a mouthful of blood, and slammed into a rock not far away, and the rock exploded, turning into countless rubble and burying him.

The golden light of the Zhentian Divine Body was faint, and although the blow just now did not break through its defense, it was also a limit for Lei Zhen at present.

The seventh-level mid-level demon beast is really very powerful, and the seventh-level primary is not enough compared to it, and it can shake the thunder to the point of coughing up blood, which is enough to prove that it is extraordinary, and even the Zhentian Divine Body was almost broken.

"Ahem, it's been a long time since I've met such an opponent, hehe, come again!" Lei Zhen is not angry but happy, the Zhentian Divine Body is strong when it is strong, and only by constantly fighting with the strong can it be tempered.

The Purple Moon Knife swung out again, and Lei Zhen collided with the oncoming iron-backed demon dragon.

The two kept bombarding each other in the sky above the mine, both of them relied on the powerful defense of their bodies to attack, and the thunder was constantly blown away, but the ironback demon dragon's body was also constantly cut out of imprints.

The Imperial Sword was applied to the extreme by Lei Zhen, and the bombardment with all his strength was carried out, and no matter how strong the armor defense of this iron-backed demon dragon was, it could not withstand the continuous bombardment.

"Damn human, I don't believe that your little human Tianwu can defy the sky!" The iron-backed demon dragon's body twisted, a silver halo flickered, and a strange energy fluctuation spread out in all directions.

"Buzz!"

There was a jolt on the ground, and some iron crystal ore emerged from the ground, and they flew towards the ironback demon dragon, directly merging into its back armor!

Absorb!

This iron-backed demon dragon is absorbing the iron crystal ore! it can directly absorb and use the energy in the iron crystal ore!

I saw that the cracks on its back armor were quickly repaired, and a layer of armor made of iron crystal ore was born to protect the back armor!

"Oh my God, the defense of this iron-backed demon dragon has been strengthened, what should I do, Brother Lei Zhen!" Wei Qiu, who was not far away, was secretly anxious in his heart.

Lei Zhen frowned, he couldn't imagine that this iron-backed demon dragon still had such a move, so its defense was strengthened a lot, how could it break through its defense?

"Human, die!" the iron-backed demon dragon leaped forward and crushed it directly.

Lei Zhen backhanded the knife, a trick was swinged, the knife light was shining, and the iron-backed demon dragon was slightly stunned in mid-air, and it turned over strangely and smashed towards the ground.

The Sword of Stop!

Lei Zhen backhanded the knife, the knife intent was mixed with the knife path, and the knife of stopping stopped the attack of the iron-backed demon dragon, and used its own strength to blast it to the ground.

"Boom!"

A big crater burst out of the ground, and the iron-backed demon dragon was shocked and angry, how could it have been attacked like this by a human monk? But the attack of this human Tianwu in front of him was really weird, and it actually dissolved its own attack!

But at this moment, Lei Zhen was a little weak, although the sword of stopping was strong, but it needed to consume more aura in the face of the attack of a seventh-level demon beast, Lei Zhen felt that the aura in the dantian was decreasing rapidly, and this reduced speed made him suddenly dizzy.

The iron-backed demon dragon got up from the pit, and it rushed towards the thunderstorm, and a thunderbolt erupted from its mouth.

"Boom!"

The thunder and lightning hit Lei Zhen's body, and the Zhentian Divine Body flashed, and most of this thunder and lightning were bounced out.

Lei Zhen had a strong immunity to the power of thunder and lightning when he condensed his innate body before, and ordinary thunder and lightning did not have any effect on him at all, this iron-backed demon dragon did not cultivate the law of thunder and lightning, so Rao is that it is a seventh-level demon beast, and this thunder and lightning cannot cause harm to Lei Zhen.

It's just that Lei Zhen saw the current situation of the ironback demon dragon from this attack, and its defense has been enhanced, but its movement speed and attack power are relatively much weaker.

Before, Lei Zhen was not as fast as the Ironback Demon Dragon, but now he can be as fast as it, or even more flexible than it.

The Purple Moon Knife condensed, Lei Zhen used his existing advantage to fight with the iron-backed demon dragon, he did not attack the demon beast head-on, but quickly swam around it, attacking the joint gap between the back armor and breastplate, and also looking for an opportunity to attack its abdomen and head.

In the continuous attack, the application of the Imperial Sword Duel was brought into full play, and several pieces of hard armor of the iron-backed demon dragon were forcefully lifted.

But the price he paid was not small, he was hit seven or eight times by the iron-backed demon dragon, and the aura of the Zhentian Divine Body shone, almost shattering, and every time he used the Zhentian Divine Body to the limit of thunder before he was willing to retreat.

He was panting heavily, his body was blue and purple, and he looked like he had rolled down from the top of the mountain, very embarrassed.