Looking at the Levitation Charm deduction ability enhancement on the system panel that he had ignored for a long time, Ciel's eyes slightly brightened.
If asked what the most useful control spell in his hands was now, it would definitely be the Levicorpus spell. When Snape created this spell, he had spent great effort. Especially the characteristic of wandless and incantationless casting. It was absolutely an extremely rare property.
However, this spell was, after all, only a product of Snape's student days. Speaking of flaws, there were still some. For example, for the characteristic of wandless and incantationless casting, its control strength was not great. Against human enemies, it could perform quite well, hanging them in the air. But against non-human targets, the effect would be greatly reduced.
Especially against those with strong magic resistance or large body types. The effect of Levicorpus was nearly nothing. This was why Ciel had never used Levicorpus, whether on Drear Island or when battling the troll priest in the Forbidden Forest.
Now, to prepare for dealing with the returning Quirrell, he refocused his attention on this spell. Other control spells might not have better effects than Levicorpus. But in terms of casting speed, they definitely couldn't compare to Levicorpus. This control spell was irreplaceable for him in the short term.
As for its flaws, he had had ideas before. At that time, because his magic strength was far insufficient, he couldn't even lift an adult's weight. He had thought of first using the Levitation Charm to reduce the enemy's weight. Then using Levicorpus to hang the enemy in a higher position. He could even connect it with Liberacorpus to let the enemy fall from a great height.
With this series of spells, a normal human would at least suffer severe concussion. Direct death wasn't impossible. It's just that this series required three consecutive spells, which is too troublesome. If it could be condensed into one spell, that would be perfect. It could even be said this would be a more powerful control spell than Levicorpus. Enough to perfectly make up for the weaknesses of a single Levicorpus.
But while the idea was good at the time, unfortunately, conditions in all aspects were not met. Especially the magical foundation was still too weak. Completing the creation of this spell by himself was almost impossible.
But now, times were different. Whether it was research on Transfiguration or Runic Script, both had brought him increasingly close to magic's true secrets. Plus this Platinum-level Levitation Charm deduction ability enhancement. The spell that was previously impossible to complete now had quite promising prospects.
Thinking this, his eyes flashed slightly. He made up his mind to complete this spell concept. However, he didn't immediately start working. Instead, he first took out the Half-Blood Prince textbook.
Facing an unfamiliar topic, blindly doing it himself, no matter how talented, would likely take many detours. But if building on predecessors' existing achievements, that would undoubtedly save a lot of energy. The probability of producing new results would also greatly increase.
Snape had already left the entire process of creating Levicorpus in the Half-Blood Prince. Thoroughly understanding it would be of great benefit to Ciel completing his own concept.
Then he reopened the Half-Blood Prince textbook. He reread Snape's entire process of creating Levicorpus. Compared to the complete bewilderment when first opening this textbook, the current him could increasingly appreciate Snape's exquisite thinking left on it.
Even the Platinum level Levicorpus, though limited by magical perception and stuck at current progress, when he reread the Half-Blood Prince textbook, the lustre on the system panel became increasingly condensed. Obviously, this was the foundation growing again.
After reading this process repeatedly several times in a flow state, he finally showed amazement.
"Snape back then was indeed a genius. Previously I couldn't understand how he created Levicorpus or how it could have wandless and incantationless casting characteristics. Now having touched Runic Script, I finally understand his thinking."
Light flashed in his eyes. Runic Script could construct endless magical nodes within it. One rune could use countless internal magical nodes to build countless different runic configurations. The combination of thirty-three runes and their different configurations was said to encompass the secrets of the entire world.
Legend said wizards proficient in Runic Script could very easily create brand new spells. For them, this was just finding the right permutation and combination in the runes.
When Snape created Levicorpus, of course he didn't have such profound Runic Script mastery. So he took a clever approach. He first deconstructed the Levitation Charm using Runic Script. He reversed the Levitation Charm's incantation and casting gestures into a runic configuration.
Constructing this runic configuration could achieve exactly the same effect as the Levitation Charm. This was just the beginning. Since the Levitation Charm's runic configuration included a full twenty-three magical nodes, to achieve wandless and incantationless casting effects, Snape then made drastic cuts and reconstructions to this runic configuration.
From twenty-three reduced to thirteen, then to seven. Finally, Snape also used the resonance effect of runic nodes. That is, under certain special circumstances, not needing to construct seven or more magical nodes could partially unleash the rune's power.
Using this line of thinking for final simplification, ultimately, he condensed it to three magical nodes, yet could use this to achieve effects similar to the Levitation Charm. This was the foundation of Levicorpus.
And after encapsulating it with incantations and gestures, a brand new, clever control spell was born.
The previous him couldn't appreciate the ingenuity and refined beauty in this process. Now that he could understand it, he finally grasped why Snape had left such proud praise after this creation. It must have been quite an achievement for him.
"Finding those three special resonant magical nodes was indeed very difficult. It required both profound magical mastery and some luck to find this special combination from the vast ocean of combinations."
However, after understanding Snape's process of creating Levicorpus, he instead breathed a sigh of relief. This was equivalent to Snape having already done the most difficult foundational work. These three special magical nodes were the most core thing in this series of spell development.
If Snape hadn't left this in the textbook, for him to modify Levicorpus, who knows how much time it would take? The difficulty would also skyrocket.
But now, he just needed to modify and adjust based on this foundation. Then he also began to attempt augmenting these three special magical nodes with great interest.
Different from the imagined possible obscurity and difficulty, in this process, he actually felt quite handy. As if mysteriously, there was strange intuition guiding him. Allowing him to more easily find new nodes that could combine with these three nodes to achieve the effects he wanted.
He raised an eyebrow. His gaze fell on the system panel. He found the Levitation Charm deduction ability enhancement text was flickering with bright light. Only then did he react. So deduction ability enhancement was manifested in this aspect.
Then he cast aside the distracting thoughts in his mind. He entered flow state again. Using the deduction ability enhancement effect, he continued trying to create Levitation Charm and Levicorpus derivatives that met his needs.
And in this process, on the system panel, the Platinum level Levitation Charm and Levicorpus, the lustre emanating from their text, became increasingly condensed. The two spells, unconsciously, their text began to blur. Actually showing a trend of slowly merging to generate new text!
Every minute, every second, this trend was proceeding bit by bit. In the blink of an eye, two days had passed.
[Levitation Charm (Platinum, evolving)]
[Levicorpus (Platinum, evolving)]
[Spell Fusion Progress: 85%]