After almost an hour, Wu Yi explored the first and second floors of the building. The bronze men survived in the lower floors. Wu Yi used the correct tactics and tried to use explosive damage to kill the bronze men. Sure enough, he harvested a lot of metal materials and elemental crystals.

Ordinary attacks do not have much effect on the bronze man, and will also affect the final gains, so Wu Yi has not summoned his summoning object for the time being, so as not to waste energy.

Moreover, Wu Yi discovered that when he used the unparalleled sword energy, the sword energy would wrap around the sword body of the giant beast's horn. When it collided with the steel body of the bronze man, the sword energy would reduce the recoil on the sword body, making the damage of the giant beast's horn extremely low, and it would be much more durable than the first time.

After killing more than ten bronze men, obvious damage and gaps appeared on the horn of the giant beast. When Wu Yi was about to use soul crystal to repair the long sword, the elf interrupted him.

"Sao Nian, you can try to use gold element crystals to repair weapons. This crystal has such a hidden effect. Even if the weapons are not all made of metal, the gold element crystals can try to fill in the damaged parts. After using them more often, they can also cover the surface of the weapon with a layer of metal material, making the weapon sharper and stronger."

After listening to the elf, Wu Yi tried to close the gap in the horn of the giant beast. The crystal began to melt like a cube of hot flames. Then the silver-white energy substance covered the horn of the giant beast, repairing the defects on it.

After Wu Yi used two gold element crystals, he repaired the horn of the giant beast to a new level. The durability reached the full value again. In the meantime, Wu Yi found that the horn of the giant beast had become thicker. This was good news for Wu Yi, who had enough power to lift a ton of hammers, which made him more convenient to use.

Seeing this result, Wu Yi felt relieved. It was pretty good to be able to use gold element crystals to repair weapons. This is to use war to support war. Only by keeping the weapon intact can you kill more bronze men and obtain materials and crystals. Otherwise, if you keep using soul crystals to repair weapons, Wu Yi would feel that it would be a bit unaffordable.

After exploring the first and second floors, Wu Yi walked up the metal staircase again and walked towards the third floor of the building.

In the corridor on the third floor, Wu Yi saw another bronze man wandering. He was a little disappointed. He thought he could see the enemy of a new variety on the third floor.

Wu Yi took the lead in a tracking technique. He began his abuse of the bronze man. With the tracking technique to reduce defense, it became much easier to deal with the bronze man. Wu Yi's next thrust easily penetrated the bronze man's body, and the armor-breaking effect made the bronze man worse and became even more fragile.

Wu Yi then used another set of sword techniques. Each sword swing was wrapped with a sword energy that made people feel cold all over the body, with the blessing of unparalleled sword energy. The power of these sword skills was much stronger than ordinary sword techniques, and it was majestic, which gave the bronze man's body a sign of collapse.

But at this critical moment, a terrible wind came from behind, and someone launched an attack behind Wu Yi. And listening to the sound, it was definitely a terrible blow.

Wu Yi did not have too much reaction time, so he could only quickly turn around and lever the horn of the giant beast before his chest, and then he was hit by an iron fist on the sword.

After being hit by this powerful punch, Wu Yi felt a huge force coming. With Wu Yi's power, he had to take two steps to block the force. He also punched the sword with the opportunity to get his inner body.

Wu Yi raised his head and found that the one who attacked him was a gray-white iron man. This iron man was taller than the bronze man, and was more than two heads taller than Wu Yi. It seemed that when the metal was formed, they would become huge to varying degrees due to the different metals.

Iron Man: Level 16. Health value 3600 points, attack power 95-110, defense power 320. Iron body, steel bars and bones. Iron fist: Iron man's fist is made of steel and has invincible force. Iron man's attack power + 20 points. Each attack will cause additional damage according to the difference in strength. Iron fist heavy blow: Iron man blows out the iron fist, causing 200 extra damage to the target, and the buffering time is 15 seconds. Combat ability: leader. Note: Iron man is similar to the bronze man. The body is made of extremely hard and extremely hard iron, which is difficult to destroy and has stronger defense. Moreover, its soul and instinct are preserved more completely, so the Iron Man's wisdom is higher than that of the bronze man, and he also has a stronger combat awareness and ability than the bronze man.

Wu Yi had not found any trace of the Iron Man in the corridor before. It seemed that this guy had been hiding in a room on the third floor before. He was alarmed by the sound of Wu Yi fighting with the bronze man, so he ran to the corridor. You Zhihui knew that he would launch a sneak attack quietly and gave Wu Yi a fierce blow with an iron fist.

This is something that did not happen when Wu Yi dealt with the bronze man before. The bronze man's wisdom is very low-level and he will only stay on his own one-acre and three-part field. Even if his kind is killed in front of him, they will remain indifferent and will not be attacked if they don't mess with them.

The Iron Man is different. As long as the enemy is discovered, they will join the war and will use their skills appropriately. Wisdom forms a sharp contrast with the Bronze Man.

The attack rhythm was interrupted by the Iron Man, and Wu Yi didn't care much. He disappeared with the wind step, then appeared behind the bronze man, broke the Yin and slashed the bronze man with a blow, and began to accumulate strength behind it.

When Wu Yi burst out five nail punches, the bronze man had not yet reacted. After being hit by this extremely explosive punch, the bronze man was completely killed by Wu Yi and fell on the ground.

After killing the bronze man, Wu Yi raised his middle finger to the iron man. The iron man actually responded to Wu Yi's provocative action. It slapped his chest angrily, and then walked towards Wu Yi with great momentum.

The wisdom of the Iron Man has not yet fully understood the meaning of the middle finger, but in its consciousness, when he saw the movement of the middle finger being raised, he felt angry and couldn't wait to tear Wu Yi to pieces.

Although his body is taller than the bronze man, his reaction and movement speed are two points faster than the bronze man. Its iron fist hit Wu Yi, and Wu Yi had to face it with high gear, so he chose to take a shot.

Iron Man was more than two meters tall and weighed a ton. When this punch hit, it was comparable to a heavy hammer. The destructive power was quite terrible because of the quality. Wu Yi could feel that brute force when he resisted, but this time he did not retreat, but instead he injured Iron Man's arm with a counterattack.

He was hit hard by the Iron Fist before, which was caused by Wu Yi's lack of preparation, and the Iron Man's punch used his skills, which was even more terrifying.

Through this confrontation, Wu Yi could realize that the strength of the Iron Man is completely overwhelming the Bronze Man, and his strength, speed and wisdom are superior to the other party. Iron Man is no longer a role like the Bronze Man who is trampled on others. Wu Yi still needs to spend some time avoiding the opponent's attack, otherwise he would be unable to bear it if he beats a few iron fists.

Looking at the Iron Man's 320 points defense, Wu Yi frowned and did not launch a rash attack. After trying his best to avoid the Iron Man's offensive, he waited until the tracking technique was buffered.

As soon as he raised his arm, energy stuck to the Iron Man, forming an energy mark. It was the effect of the tracking technique that directly reduced the Iron Man's overall defense of 100 points.

Then Wu Yi activated the effect of the Sky Eye, which could ignore the enemy's 120 defense. Iron Man is an enemy at the leader level, and Wu Yi's combat ability is at the hero level. The suppression blade makes Wu Yi ignore the opponent's 20 defense. With Wu Yi's armor-breaking effect directly hitting the piercing, its defense is useless when dealing with Iron Man.

After multiple weakening of defense, Wu Yi became much easier to deal with Iron Man. He still used his previous tactics and tried to use high-damage skills to deal with Iron Man, so as not to leave too many wounds on it, so as not to affect the quality of the spoils.

After using two rounds of sword skills, combined with the unparalleled sword energy, the Iron Man was at the end of his strength, and then his life was ended by Wu Yi's five-in-one nail punch.

Next to its corpse, in addition to the gold element crystal (small), there is also a gray-white metal block. After Wu Yi picked it up and looked at it, she found that the metal block was fine iron.

While using the gold element crystal to repair the broken gap on the horn of the giant beast, Wu Yi asked the elf: "You have said before that upgrading the suppression blade requires fine iron and century-old hardwood, right?"

The elf nodded and replied: "Well, fine iron and century-old hardwood are the best materials for perfectly upgraded Pressed Blade. If these two materials are enough, they will be enough to upgrade Pressed Blade to the bronze level. However, after upgrading to the bronze level, Pressed Blade needs more advanced materials to upgrade. Many other equipment are the same, and the demand for materials will be changed as the level increases."

"That's good. The Iron Man just happens to drop the fine iron. It seems that the steel creatures in this steel city are all present. I will definitely be able to harvest enough fine iron. When I go to the wood element gathering place to collect some century-old hardwoods, I can upgrade the suppression blade well." Wu Yi said.

The effect of the Suppression Blade is very good. It can suppress enemies with lower combat capabilities than Wu Yi, causing absolute damage while also ignoring the enemy's defense. It has miraculous effects against low-end enemies. It is also one of the preparations Wu Yi made to deal with a large number of low-end enemies that he may need to face in the ladder challenge.

Wu Yi never fought unprepared battles. In order to successfully pass the ladder challenge, he was prepared for many things and must pass it in one go.

Fine iron is actually a metal material with a very high demand. It is necessary to upgrade a variety of weapons and armor. No matter how much it collects, it will not be wasted.

In order to harvest the elite iron, Wu Yi began to wipe out the iron man on the third floor. There were about half of the bronze man on the third floor, and the other half were iron man. Moreover, the iron man was often attracted by the fighting movement, so Wu Yi did not worry about not being able to find the target.

After more than an hour, Wu Yi searched every space on the third floor, killed all the iron men inside, and collected about twenty pieces of fine iron. (To be continued, please search Piaotianwen, the novel is better, updated and faster!
Chapter completed!