However, while anticipating, Charle also thought of the shortcomings of the Killing Curse.
Although the Killing Curse in the original work was powerful, in the hands of a wizard who could unleash its power, it was practically guaranteed death upon impact, and almost no protective magic could defend against it.
But its shortcomings were also obvious: it had no lock-on, no area effect, only extreme single-target damage.
This led to the fact that in many major battles in the original work, the number of people killed by the Killing Curse while constantly moving was actually not large.
It was only in the hands of Voldemort, the wizard who understood the Killing Curse best in the magical world, that the Killing Curse could be called a "Finger of Death," killing wherever it pointed.
But that was only against wizards far below his level. In the original work, when fighting Dumbledore at the Ministry of Magic, Voldemort's supposedly guaranteed-death Killing Curse was completely useless. Instead, he heavily used Transfiguration to fight Dumbledore.
This was actually a manifestation of the Killing Curse's shortcomings.
At this level, the pace of battle was too fast, and Apparition was used extensively. Reaction speed was also astonishingly fast due to the strength of the mind.
Avoiding the green light of the Killing Curse, unless restricted by other spells, was not difficult at all.
As for the shortcomings of the Killing Curse, everyone understood them, and it wasn't that no one wanted to improve it.
But the Killing Curse itself was an extremely high-level spell. How could it be easy to improve?
Even Voldemort himself, after so many years, failed to create a more advanced Killing Curse. At most, he had some minor improvements that only he could utilize.
But for Charle, with Deep Blue, even the Killing Curse could be deduced and improved, completely compensating for these shortcomings!
However, Charle was not in a hurry to start deducing the Killing Curse. Instead, he planned to deduce the other Dark Arts first.
After all, in the process of deducing other Dark Arts, he would also acquire new knowledge, which might be useful in the subsequent deduction of the Killing Curse.
Anyway, after obtaining the Cerberus transformation, the first three deductions of all Dark Arts consumed no points at all. This was completely enough for him to instantly become a top master in the field of Dark Arts!
A light shone in Charle's eyes.
"Deep Blue."
"Imperius Curse, Cruciatus Curse, Sectumsempra, Fiendfyre Curse..."
"All the Dark Arts I have obtained, deduce them three times each!"
As Charle murmured, the next moment, his mind was flooded with seemingly endless knowledge of Dark Arts, like a tide.
Torture, control, shredding, burning...
All sorts of intense malice sprouted, but they had no effect whatsoever before Charle's Occlumency.
An expression of understanding also appeared on Charle's face.
After coming into contact with Dark Arts, he also understood why they were called "Dark Arts."
Because unlike White Magic, which required positive emotions, Dark Arts required intense malice in one's heart.
It required the caster to intensely want to torture others, slaughter others, burn others, or control others like puppets on a string.
Compared to positive emotions like protection, beauty, and kindness, such malice would be clearer and more intense.
This led to the fact that among wizards with the same magical power and mental strength, one using White Magic and the other using Dark Arts, the spell cast by the one using Dark Arts would often be much more powerful.
But at the same time, casting Dark Arts came at a price, which was the gradual distortion of the mind.
Just like killing, friends who kill often know that the first time is the hardest, it's difficult to take that step.
But once you take it, the second and third times become easier and easier.
Using the Killing Curse, even without killing someone, was equivalent to releasing an incredibly intense killing intent mentally, which had a stronger impact on the mind than killing three or five people.
Using it once or twice might be fine, but long-term use of such Dark Arts would inevitably lead to mental alienation.
Killing like a butcher and being addicted to torture were the inevitable results of using the Killing Curse and Cruciatus Curse.
Other Dark Arts would also cause mental distortion, which is why most wizards immersed in Dark Arts were extremely wicked.
Charle also felt a strong mental impact at this moment. Although his Occlumency could shield these effects, no one could guarantee that under the long-term impact of Dark Arts, Occlumency could completely isolate all effects.
Just look at Voldemort. When Voldemort first appeared, forming the Death Eaters was actually just organizing a political party, not particularly extreme.
But the further it went, the more radical the actions of the core members, including Voldemort himself, became, to the point where the reputation of the Death Eaters was now completely ruined.
So Charle immediately specified the direction for the first two deductions of these Dark Arts.
"First, enhance the stability of the spells. Just like deducing the Patronus Charm, I don't need spells that cannot be cast without specific emotions."
"Second, remove the mental impact of Dark Arts. I don't need spells that affect myself."
"Spells are just tools. How can a person be changed by a tool? Is it the person controlling the spell, or the spell controlling the person?"
After a moment of contemplation, Charle specified the direction for the third deduction.
"Finally, deduce it in a more extreme direction."
"I think the effects of Dark Arts in the current magical world are still too mild, especially the Unforgivable Curses. Are these really unforgivable?"
"The Imperius Curse can be resisted, and the control time is not long, with no after-effects. As an Unforgivable Curse, it's a bit watered down."
"Combine it with the Mirror of Reincarnation deduced from Legilimency, strengthen the control effect of the Imperius Curse, and at the same time achieve the effect of permanently modifying memory, consciousness, and even personality!"
"Also, the Cruciatus Curse, it's not good enough, it's really not good enough."
"It might work against those with weaker wills, but for those with firm resolve and deep-seated hatred, the Cruciatus Curse isn't enough to instill fear."
"For example, Neville's parents, when tortured by Death Eaters using the Cruciatus Curse, never yielded. They were even driven mad by the spell in the end."
"This kind of torture is really not effective, it's too crude."
"The Cruciatus Curse I want should not only torment the enemy's body but also their mind. It seems it can also be combined with the Mirror of Reincarnation, intertwining physical and mental pain. No need for multiple castings, just one time is enough to make the enemy feel what it means to wish they were dead."
"And the other Dark Arts spells are the same. Deep Blue, they're already Dark Arts, let's go for something extreme!"
As Charle spoke, Deep Blue operated frantically.
Every minute and every second, the Dark Arts knowledge flashing through Charle's mind was enough to make those who prided themselves on mastering Dark Arts turn pale with fright.
Because even if all the Dark Wizards in the entire magical world were gathered, it would take an unknown amount of time to complete so many Dark Arts improvements.
And the things flashing through Charle's mind were too evil, too extreme.
Compared to these things, even the most ruthless Dark Wizards were as docile as sheep!
When all the Dark Arts spells Charle knew had been deduced three times, Charle opened his eyes, feeling as if a lifetime had passed.
This deduction was the longest one ever.
Although it was only three deductions, there were too many spells deduced, and the knowledge and materials involved in the process were vast!
But the gains after this deduction were also terrifying.
Deep Blue's prompts sounded like a screen refresh.
Imperius Curse three deductions completed. Host has obtained Mental Spell - Soul Reconstruction.
Based on the Imperius Curse, combined with the derivative spell of Legilimency, the Mirror of Reincarnation, it continuously manipulates the life and spirit of the cursed person in repeated reincarnations. Each reincarnation will permanently modify the target's memory and consciousness.
The greater the difference in mental strength, the more significant the modification effect. For cursed individuals whose mental strength is inferior to the host by more than one era, the host can even modify them into a completely unfamiliar personality!
...
Cruciatus Curse three deductions completed. Host has obtained Mental Spell - Pain Piercing the Heavens.
Unlike the Cruciatus Curse which purely creates extreme physical pain to destroy the spirit, this spell also combines the host's other materials in mental spells, amplifying the cursed person's mental pain exponentially.
The cursed person will feel the extreme pain that destroys the spirit. The pain of their entire life will appear before their eyes, and even the strongest spirit will suffer a heavy blow.
...
One by one, the Dark Arts spells, after having their side effects removed, were further deduced in a more extreme direction.
At this moment, Charle could be considered one of the only three Dark Arts masters in the recent ancient era.
Although he might not be as deep in absolute Dark Arts as Grindelwald and Voldemort, his breadth in the field of Dark Arts was also something those two couldn't compare to.
After all, a person's energy is limited, and Grindelwald and Voldemort were no exception; it was impossible for them to master everything in the field of Dark Arts.
But Charle was different; he could be said to be proficient in almost all current Dark Arts!
Fiendfyre, malicious transfiguration, jinxes, curses...
Charle was proficient in everything!
Especially in the relatively niche field of curse magic, Charle's attainments could be said to be unparalleled in this era.
After all, this stuff doesn't cause direct damage. Compared to the Killing Curse which can directly kill enemies, it's still too indirect.
Therefore, among the already not-so-many Dark Wizards, there haven't been many who have studied curses since ancient times.
In today's magical world, the most famous curse still comes from Voldemort's curse on the Hogwarts Defense Against the Dark Arts position.
After traveling around Europe back then, experiencing several Dark Arts transformations, and his strength soaring, he failed to get the position of Defense Against the Dark Arts professor at Hogwarts, so he cursed that no one could stay in this position for more than a year.
To be honest, this curse is a bit childish, and it's been quite a few years now.
But today, the effect of the curse is still ongoing.
Even Dumbledore had no way to deal with this curse and could only change the Defense Against the Dark Arts professor every year.
Even Hogwarts' protective magic failed to withstand this curse.
This is also enough to prove that the field of curse magic is too niche, and even the top wizards have no solution for this stuff.
And now, Charle's attainments in curse magic are definitely more than one level stronger than Voldemort's back then.
In this field, there is absolutely no problem for him to call himself the strongest in the world!
Even at Hogwarts, under Dumbledore's nose, Charle casting a curse could leave Dumbledore helpless!
A smile appeared on the corner of Charle's mouth.
"Also, I remember my Space-Time Mark Magic allows me to curse a marked entity from thousands of miles away."
"It's just that I haven't had the chance to deduce curses before. Now I can finally utilize this characteristic."
"I have to say, it's really good at annoying people."
"If that old bee Dumbledore annoys me again, I'll use curse magic to teach him a lesson!"
In addition, Charle's mental strength also soared after these Dark Arts deductions.
So many spells undergoing three deductions simultaneously meant a vast amount of knowledge.
At this moment, Charle filled all the knowledge generated during these processes into his memory palace. The area of the memory palace has expanded by nearly half compared to before, and the boost to Charle's mental strength is naturally not insignificant!
Even without deducing the Killing Curse yet, just these Dark Arts deductions have raised Charle's strength by another level compared to before!
After digesting these gains, a hint of fervent light ignited in Charle's eyes.
"So, it's finally time for the Killing Curse."
"Deep Blue, deduce it for me!"
"The first two deduction directions are the same as before, removing unstable casting conditions and removing side effects. As for the third time..."
Charle pondered for a moment.
The Killing Curse's instant death effect is already extreme enough. Even if the power is enhanced, a person can't die twice, right?
So there's no need to continue deducing the power for now. Instead, he needs to work on the hit rate.
Therefore, Charle issued an instruction to Deep Blue.
"For the third deduction, I want to greatly enhance the hit rate of the Killing Curse. It would be best if the Killing Curse could have an automatic targeting function!"
Such a request, even if Voldemort heard it, he would curse Charle for being too greedy.
Killing Curse automatically locks onto targets?
What good things are you thinking of!
But Deep Blue said nothing, silently bearing everything.
A moment later, Deep Blue's prompt sounded in Charle's mind.
Killing Curse three deductions completed.
Host will no longer need to harbor killing intent when casting the Killing Curse.
Host will no longer suffer from side effects such as mental distortion when casting the Killing Curse.
The Killing Curse cast by the host will interact with the Space-Time Mark Spell. The Killing Curse will constantly track the location of the Space-Time Mark and correct its path until it hits the target or its magic power is exhausted!
Charle took a deep breath, a look of surprise appearing on his face.
He didn't expect that although Deep Blue couldn't give the Killing Curse itself a targeting function, it could indirectly achieve it by using the Space-Time Mark Spell he had previously deduced.
The Space-Time Mark Spell was already one of the most irresistible spells in Charle's hands. Even the ancient being in the Romanian Dragon Blood Sea could only watch helplessly as Charle imprinted a "Demolish" character on his coffin.
It is likely that even Dumbledore would have no way to deal with the Space-Time Mark Spell.
In other words, it is very simple to put a Space-Time Mark Spell on an enemy.
With the help of the Space-Time Mark, the Killing Curse can constantly target, greatly increasing the hit rate!
The next moment, Charle looked up at the sky, his gaze falling on a flying bird.
Waving his wand, a Space-Time Mark was instantly imprinted on the bird.
Then, Charle chanted the unforgivable spell.
"Avada Kedavra."
A dazzling green light immediately whistled out, then flew towards the sky on its own.
Even the bird felt terror from the magic power carrying the aura of death, constantly accelerating its wingbeats, trying to escape.
But the green light of the Killing Curse was like a living thing, chasing the bird and drawing arcs, then hitting it accurately.
Instantly, the bird lost its vitality and fell straight down from the sky.
Seeing this scene, Charle nodded with satisfaction.
This way, even if the enemy is riding a flying broom or various flying tools, his Killing Curse can hit accurately!
As long as the enemy doesn't fly too far in this short time, causing the Killing Curse's magic power to dissipate too much, they will be killed.
If Voldemort in the original work could have developed the Killing Curse to this extent, Harry Potter would have ended long ago!
However, next, Charle licked his lips.
He still had a lot of points now. Deducing so many Dark Arts didn't even consume any points.
The Killing Curse is completely worth deducing further.
"The hit rate of the Killing Curse is solved, but it still has a problem, it's single-target, it can't attack groups."
Charle's mind flashed with classic spells from some fantasy games in his previous life - Lightning Chain.
As long as it hits one enemy, the spell will chain and jump to hit more enemies.
If the Killing Curse could also do this, wouldn't it truly become a clearing divine skill in large-scale battles?
One Killing Curse down, directly clearing a battlefield!
When this idea appeared in his mind, Charle couldn't stop.
"Deep Blue, Killing Curse fourth deduction..."
"Push it in the direction of enhancing group attacks. The idea is Lightning Chain."
"Deduce a Killing Curse Lightning Chain for me!"
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