My powers are all based on the law of cause and effect

After that, Su Xin tested the impact of obstacles on the sword through multiple attacks.

Of course, Su Xin also knew that obstacles would inevitably weaken the attack, but what he really wanted to verify was whether the sword light would dissipate early due to obstacles on the way.

To be precise, some relatively fragile obstacles will cause the sword light to dissipate directly.

After all, the attack power of the sword light is actually not strong, and compared with the blade, it is illusory after all. Even if it has the same physical properties as the blade, it is still illusory in nature and will definitely dissipate in the end, unlike The blade can also continue to attack. For example, after the blade stabs the target, it can continue to exert force and continuously increase the damage, but the sword light obviously cannot.

What he needs to confirm is the specific dissipation mechanism of the sword light.

It is impossible to penetrate all objects in the way without limit, that would be too invincible.

It is also impossible to cut a piece of paper and then dissipate. That would be too fragile.

So, it must be somewhere in the middle of the two.

After many attempts, Su Xin finally had a better understanding of the nature of Dao Mang.

Indeed, as he had guessed, the sword light would be quickly weakened by obstacles.

For example, when he fired a sword light at a book, the sword light only scratched five pages including the hard cover cover.

When he swung a blade of light at the vegetable sink full of water, the blade barely passed through the clear water in the pool, leaving a medium-deep knife mark on the cucumbers at the bottom of the water.

But when he pointed the sword directly at the cucumber, the cucumber was cut into two pieces neatly, which was not much different from holding the knife in person.

Therefore, Su Xin's final research result is that if there are no obstacles, the attack power of Dao Mang is not much different from the direct attack power. If there are obstacles, the attack power of Dao Mang will be weakened quickly.

In other words, Dao Mang can only exert good attack power when facing the first target.

In fact, you can understand it if you think about it.

After the sword light is emitted, there is no external force to continue to support it. In addition, it is illusory. Every time it encounters an obstacle, its own strength will dissipate a lot, and the sword light will become more illusory.

Compared with the physical blade held in the hand, the attack power of the sword light will definitely dissipate faster.

And it's much faster.

After having a relatively comprehensive and in-depth understanding of the ability [Sword God's Slash], Su Xin immediately chose to upgrade.

He now has 2938 causal points and can directly upgrade his powers to LV3.

After two upgrades, he gained the characteristics of [Integration of Man and Knife] and [Super Speed ​​Slash] respectively.

[Integration of Man and Knife: Select a knife as the fusion object. You can shrink the fusion object ten times and turn it into a mark on your body at any time. You can also restore the mark at any time. However, after changing the fusion object, the original fusion object will never be able to fuse again. . 】

[Super Speed ​​Slash: The flying speed of the sword light is doubled. 】

Another option that appears at the same time as the super-speed slashing feature is violent slashing, which can double the slashing power attached to the sword.

But anyone with a little common sense knows that speed is power. Calculated using the kinetic energy formula that all middle school students know, doubling the speed will quadruple the kinetic energy. This is much more cost-effective than simply doubling the cutting power, let alone It is said that attacks that fly faster are more difficult for the target to avoid.

Therefore, the super-speed slashing feature only doubles the speed on the surface, but the actual effect is equivalent to strengthening the three attributes of attack power, speed and hit rate at the same time.

The emergence of this feature can be regarded as barely solving the flaw of the sword's weak attack power.

At least, his attack with the sword light is much stronger than his own attack with the sword.

The other feature [Integration of Man and Knife] is equivalent to a portable space, but it is only a space for holding a knife, and it is only a knife.

In a modern society with relatively advanced technology, this feature is quite useful. It allows him to carry a knife with him wherever he goes without being detected by anyone or any means.

Since the fusion object can be freely changed, Su Xindang chose the only sheathed fruit knife at home as the first fusion object.

The fusion process is very simple.

Su Xin just held the knife in his hand, and with a thought, activated the human-knife fusion feature, and the fusion process ended quietly.

He could feel that from this moment on, he and the fruit knife in his hand had a strange feeling of blood connection, as if the knife had become a part of his body.

"interesting."

Su Xin smiled slightly, took the fruit knife out of its sheath, played with it in his hand, and then swung the knife light at the wall again.

I saw the silver sword light quickly piercing the air, and the next moment it struck the wall, making a dull low sound, and then disappeared without a trace.

"The speed and attack are indeed much stronger."

"Moreover, it seems to be easier to play. Is it the hidden effect of the integration of man and knife?"

Su Xin continued to play with the fruit knife for a while. After feeling it for a while, he didn't know if it was an illusion. He just felt that after the power was upgraded, he felt more comfortable playing with the knife.

Then he sheathed the knife again.

With a thought, the fruit knife and sheath turned into a mini fruit knife mark, which was printed on the left wrist.

Then with another thought, the mark of the fruit knife began to move freely on his arm.

"Yes, this is very convenient."

With a thought, Su Xin's mark of the fruit knife quickly traveled to his left palm and transformed into the fruit knife again, which he held just right.

After playing with great interest for more than ten minutes, and having a full understanding of the two major features obtained by upgrading, Su Xin stopped.

I took out my phone and checked the time——

It was already past nine o'clock in the evening.

From last night to now, he has been immersed in the mission for more than twenty-four hours.

Fortunately, it was completed on November 2nd.

This means that if his judgment on the task triggering mechanism is correct, a new system task will be triggered in another six days.

"It's not bad, it's only six days."

"Next, let's find a way to get a good knife. After all, I am now a strong swordsman who can slash swords with ease."

Su Xin smiled to himself.

Returning to the room, turning on the computer, I searched for some pictures and data of knives on the Internet, and finally selected a handsome horizontal knife. I copied the pictures and related data, compressed them into a file, and sent them to Xu using a backup email address. Yongshou, let him arrange to build one as soon as possible.

He also emphasized in the email that the best material must be used to ensure it is sharp enough.

After sending the email and cleaning up all traces, Su Xin spent another two hours and donated two million anonymously as before.

The balance of his bank account has finally returned to less than one million, which also means that today is the last day for him to donate. The only more than 500,000 left in the account can only be used for his daily expenses. .