The efficiency of the Giant Rock Commerce Association was as reliable as ever. In less than a day, a custom metal box emitting cold air was delivered to the deserted island.

Inside the box, the rare materials needed for ten portions of Concentrated Potion were neatly arranged. These included the bone-chilling Frost Flower Bud, the flickering Star Realm Dust resembling a miniature galaxy that seemed ready to dissipate at any moment, and the Active Crystal Marrow containing mild life energy like liquid diamond.

Duke spent some time studying the refining of the Concentrated Potion. Although this Level 1 Potion wasn't as complex as the Blood of War, refining it was not easy.

"The key lies in balance," Duke recorded in his experimental log. "The extreme cold condensation of the Frost Flower Bud provides compressive force, the Star Realm Dust anchors energy flow to prevent the dissipation of spiritual power, and the Active Crystal Marrow protects the sea of spirit from impact. The attributes of the three elements conflict intensely, and dynamic balance must be achieved at the moment of introduction, otherwise..."

Three days later.

Duke held a bottle containing a slightly blue solution, with sporadic starlight flickering within.

This was the Concentrated Potion, which aids in compressing spiritual power, a single portion of which took Duke several days to successfully refine.

[Concentrated Potion: Level 1 (1/30)]

Duke then conducted a series of tests on the successfully refined Concentrated Potion, recording many data points.

After completing these, he took a vial of the Concentrated Potion and drank it, then entered into a state of meditation.

Once the Concentrated Potion entered his body, it transformed into a stream of pure energy.

Duke guided this energy towards his gaseous nebula-like spiritual power. The energy, infused with pure potion power, merged into the gaseous spiritual power and then began to exert its effect.

The gaseous spiritual power nebula began to contract inward, albeit at a small amplitude, almost imperceptible without careful perception.

But this was already much faster than his usual progress in compressing spiritual power, noticeable even to the naked eye.

When Duke usually compressed his spiritual power, the gaseous spiritual power would hardly change significantly, requiring time to gradually polish.

After experiencing the effect of the Concentrated Potion, he opened his eyes: "The effect is quite good, it seems I need to put aside the refining of the Blood of War first."

Duke immediately altered his subsequent plans, shifting to refining the Concentrated Potion in order to complete the liquidation process as quickly as possible.

He accepted an order for a batch of Concentrated Potions from the Giant Rock Commerce Association, totaling one hundred vials.

Duke only needed the portion left over from the refining process to suffice for his own cultivation needs.

Moreover, the Giant Rock Commerce Association would provide extra magic potion materials, so there was no need to worry about a shortage of materials.

Half a month later.

[Concentrated Potion level increased, free attribute points +1]

[Concentrated Potion: Level 9 (Trait: Variable Compression)]

[Variable Compression: After consuming the Concentrated Potion, spiritual power compression can automatically adjust the compression speed according to spiritual power usage]

Duke spent half a month upgrading the Concentrated Potion to its maximum level and gained the trait of variable compression.

He carefully felt the effect of the variable compression, realizing it essentially adjusted the speed and intensity of compression based on current spiritual power usage.

As the process of compressing spiritual power fundamentally requires the wizard's full concentration and complete focus.

Matters involving spiritual power would always be handled carefully to avoid any problems.

The Concentrated Potion's ability to automatically compress is naturally not a simple task, adjusting compression speed whenever necessary during the potion's efficacy.

For instance, if a wizard is using spiritual power to cast spells or refine potions, the compression speed would slow considerably.

But if the wizard is meditating or doing nothing, the speed of spiritual power compression would increase.

Understanding the effect of this trait, Duke was amazed, never imagining a potion could function in this way.

If he were to develop such a potion himself, he would not even have a thought on how to achieve it.

Duke had never heard of any similar mechanism in potions and assumed this branch might not exist in the current Magic Potion framework.

However, despite having this trait, he dared not multitask while compressing spiritual power.

Duke had performed compression before, so he naturally knew how difficult the process was, requiring an extremely high level of concentration and not allowing any distraction.

Now, relying entirely on the potion, he was indeed somewhat uneasy, even knowing post-experiment that there were no issues, he was still reluctant to fully trust.

Duke aimed for a sufficiently stable cultivation, unwilling to take risks for a little convenience, even if the risk was low.

Therefore, after consuming the Concentrated Potion, he still guided the compression of his spiritual power himself, with it merely facilitating the process.

Right after he finished this round of practice, he received a message from Vivian: she had successfully advanced to an Official Wizard.

Although Vivian's advancement took much longer than Duke's, this speed was already considered fast at Thorn Holy Tower.

With Grace's guidance and support, Vivian's advancement to an Official Wizard was expected, even slower than Duke anticipated.

However, Thorn Holy Tower prioritizes stability, and they do not take this step lightly unless every aspect is optimized and adequate knowledge is fully mastered.

Duke and Vivian chatted for a long time, and he sensed Vivian's relief.

He fully understood this feeling, as there was always a lack of assurance before truly advancing to an Official Wizard.

No matter how thoroughly prepared one was, anxiety persisted before the breakthrough. Once crossing this threshold, the world felt suddenly vast and open.

Vivian was also on the elemental mage path. During her time as a Wizard Apprentice, she explored various elemental attributes but had the highest affinity with the Wind Attribute, while others were relatively lower.

"The Wind Attribute... It seems your direction when advancing to Crystalized Wizard is also clear." Duke said.

"What about you, Duke?" Vivian asked.

Duke paused: "..."

He was unsure how to answer, as if he said he was preparing for Crystal Cores of earth, wind, water, fire, light, and dark attributes, Vivian might think he was crazy.

Because it was practically impossible—no one in the Wizard Plane had ever achieved such a feat.

Being an elemental mage for six attributes meant he required extremely high elemental affinity for all six, an extreme possibility existing only in theory.

Yet, Duke just happened to reach this theoretical limit, possessing exceedingly high elemental affinity for all six.

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