A series of prompt sounds came into Ling Yan's mind.

At this moment, Ling Yan felt that his understanding of swordsmanship had become much stronger than before.

Among those SS-level geniuses of the Stru civilization killed by Ling Yan before, there were some who had talent in swordsmanship, which brought Ling Yan's swordsmanship talent to LV25 or above.

It is considered very good. This sword talent is much weaker than the elemental talent, but it is only equivalent to the enhancement of the three basic attributes.

Moreover, this swordsmanship improvement is equivalent to an elemental improvement and cannot be combined with other elemental improvements.

It can only be slightly improved on the original basis.

Therefore, the upgrade to LV40 did not significantly improve Ling Yan's strength.

However, there is an improvement after all. Now Ling Yan's combat power base is so terrifying that even a small improvement can bring huge effects.

At the same time, Ling Yan looked at the next prompt tone.

At this time, almost all the dark spirits and ghosts were destroyed.

The number of residual souls of Ling Yan's dark spirit ghosts has increased to billions.

It is conceivable that if Ling Yan comes in again next time and directly releases billions of dark spirits and undead ghosts, how terrifying will the speed of killing monsters be at that time?

[Ding... Congratulations to the host, you've killed 6.1 billion Dark Spirit Ghosts! Experience Points Earned: 61 Jing! Star Coins Earned: 615.1 Billion!]

[Wheel of Fortune activated! Passive copy success rate increased 10 million times]

[You successfully copied the passive skill: Rebirth LV1*15.4 million, and the level is increased to: LV31 (450,000/20 million)

(There is a 1.3% chance of rebirth after death! The rebirth time is random!)]

[You successfully copied the passive skill: Dark Power LV7*158 million! Level increased to: LV44+3 (2.5 billion/5 billion)]

[You successfully copied the passive skill: Chaos Power LV7*168 million! Level increased to: LV44 (3.4 billion/5 billion)]

[Congratulations, player! You've killed 1 billion soul-like creatures and earned the title: Ghost Slayer LV6! Your attack power against ghost-like creatures has increased by 130%! You've also gained a 100,000-meter aggro area and a 90 aggro value!]

At the same time, Ling Yan took a look at all the gains after killing 6.1 billion dark spirit ghosts.

"My Dark Force has reached LV47. I estimate that after clearing this dungeon once or twice more, I can raise it to LV50 or above.

I just don't know if there will be any other changes after upgrading to LV50 or above!"

Ling Yan was also looking forward to it.

"Oh, I almost forgot, once you reach LV100, you can use the same skill to upgrade its level! I've prepared a lot of skill books just waiting for now!

Besides, it seems that this time when equipment dropped, skill experience cards also dropped."

Suddenly Ling Yan remembered this.

Ling Yan's growth rate is really too fast.

Therefore, the final result is that Ling Yan's skill level is actually lower than that of others at the same level, but this is not a big deal, after all, Ling Yan's skill quality is higher than others.

But being able to improve the level of skills is naturally good.

The other is the skill experience card. Ling Yan took a look at it and found that this card is equivalent to a whole skill book.

And it can be applied to all skill books, which surprised Ling Yan.

Theoretically, the drop rate of this thing is much lower than that of skills of the same level, but I didn't expect that an emperor-level BOSS could actually drop ten cards.

"Let's upgrade the Dark Gold-level skills of the Hell Emperor Tower first!"

Thinking of this, he immediately took out fourteen skill books of the Hell Emperor Tower.

"Apocalypse, convert all these skill books into experience points to upgrade the Hell Emperor Tower!"

Ling Yan didn't hesitate and spoke directly to the system.

【Accept the order! 】

In an instant, the will of apocalypse returned to Ling Yan.

"boom!!!!"

In an instant, a vast stream of memories poured into Ling Yan's mind like a flood.

[Ding... Congratulations to the player, the Hell Emperor Tower has been upgraded to LV3]

[Ding... Congratulations to the player, the Hell Emperor Tower has been upgraded to LV4]

…………

[Ding... Congratulations to the player, the Hell Emperor Tower has been upgraded to LV6]

Four prompt sounds reached Ling Yan's mind.

The level of the Hell Emperor Tower skyrocketed to LV6.

[Hell God Tower LV6: Dark Gold Level, summons Hell Secret Treasure, Hell God Tower Phantom, suppresses everything, burst attack power: 3200%, cost: 200 million

Explodes during the death gap, can explode: 6400% attack power! Consumption: All remaining health points, only 1 point left! 】

Horrible. After seeing this attribute, Ling Yan could only describe it as extremely terrifying.

The basic power alone reaches 3200% of the cage cloth!

This improvement made Ling Yan feel a little shocked.

If it is released with all one's might, the power will double again.

A 64-fold terrorist attack, I'm afraid even the heaven and earth will be suppressed?

"Based on this level, when it reaches level 10, its power will be comparable to the weakest red skill.

It’s a pity that the highest level of any skill can only reach LV10!

But it's okay, it's equivalent to raising the quality of the skill to a higher level!"

When Ling Yan thought of this, his eyes flashed slightly.

Then he directly used the golden skill cards and other skill books in his hand to start upgrading other skills.

[Ding... Congratulations, the player! The Dragon Emperor's phantom level has been increased to LV10. The number of each Emperor-level BOSS summoned has been increased to 3. The number of each Dragon King summoned has been increased to 100!]

[Ding... Congratulations, your Void Flash level has been upgraded to LV10. At your current level, your single use allows you to teleport up to 100 kilometers!]

[Ding... Congratulations, the player! The level of the Evil-Slaying Sword Formation has been upgraded to LV10. The power has doubled while maintaining the base power! The range has also doubled!]

[Ding... Congratulations, the player. The level of the Sea of the Dead has been upgraded to LV7. The strength of the summoned undead is at its peak: 30%]

………………

Almost all the skills revealed were strengthened to LV7 or above by Ling Yan.

The golden skill has even reached the maximum level of LV10.

It can be said that it is very easy to stack up the levels.

The only problem is that there are too many skill cards that need to be consumed.

"I don't have any Dark Gold skill cards yet. Otherwise, I could upgrade all my Dark Gold skills to LV10. Then my combat power would have a qualitative leap."