The Duke stopped in front of a heavy metal door, engraved with complex rune arrays.

Embedded in the wall beside the door was a glowing crystal panel, clearly displaying the words "Magic Laboratory."

The environment here was noticeably quieter and more solemn compared to the residential areas and main thoroughfares, with the air filled with purer and more active energy particles.

Occasionally, wizards in robes of various colors would enter and exit with focused expressions, rarely engaging in conversation with each other.

The Duke took out a metal card, which was his means of identification, and after touching a small recessed area on the metal door, the door automatically opened.

Behind the door was a spacious hall, with three black-robed wizards seated behind a counter, assisting a few people with procedures.

The hall was not crowded, and it was very quiet, with the low murmur of conversations at the counter clearly audible.

After listening briefly, the Duke understood and went to queue behind the counter.

By paying the fee at the counter and completing the procedures, one could access the magic laboratory for experimentation.

The standard laboratory cost a hundred and fifty magic stones for a twelve-hour use.

The advanced laboratory wasn't too expensive either, at five hundred magic stones, for the same twelve-hour period.

Before long, it was the Duke's turn, and he opted to rent a standard laboratory.

Although the advanced laboratory's facilities were more comprehensive and high-end, he found little need for such a level of equipment.

Even with some magic stones on hand, it was prudent to save where possible.

After completing the procedures, the Duke went to the second floor to find the laboratory he rented.

Upon opening the door, a standard laboratory about thirty square meters in size appeared before him.

The walls, ceiling, and floor were made of some gray-white, smooth and seamless special material, engraved with densely packed energy guidance, reinforcement, and isolation runes.

At the moment, they were emitting a faint yet steady glow, ensuring that energy fluctuations from internal experiments would not leak out, while also protecting the user from external disturbances.

At the lab's center stood a waist-high silver metal experiment platform, with the surface similarly engraved with energy circuits, connected to several base interfaces to accommodate standard energy sources and measurement instruments.

Above the platform were several adjustable focusing crystal heads for microscopic operations and observations.

In one corner of the room was a simple material processing table and a small element precipitation pool for handling simple waste from experiments.

Currently, the Duke didn't need these; he only required the protective witch array within the laboratory to ensure his magic would not affect other areas during casting.

The strength of Level 1 magic is quite substantial, especially as the Duke's Spiritual Power increases. Any aggressive magic cast would not be of low intensity.

This posed some challenges in honing his proficiency, as without a sufficiently sturdy and stable environment, it would easily cause some destructive impact on the surrounding environment.

After activating the laboratory's protective array, Magic Power surged within the Duke as he uttered several strange syllables.

Moments later, Light Attribute Energy emanated invisibly around him.

This was the Holy Dispel from Level 1 curse magic, which could gradually increase proficiency as long as he maintained it.

However, theoretically, casting it frequently could speed up the process, though it would consume Magic Power more rapidly.

When the Duke was mastering the Holy Shield magic, he increased proficiency by casting it frequently, as it allowed for faster progress.

But that was also because he was in the Oracle Plane's Magic Potion Shop, where casting other spells was inconvenient.

Now in the Magic Laboratory, he could also cast other spells.

Therefore, maintaining the Holy Dispel was more reasonable, as it continuously increased the proficiency of Holy Dispel while also allowing for concurrent practice of other spells.

[Holy Dispel: LV1 (1/100)]

The Duke then continued with another incantation, and a layer of white glow manifested over him.

This was the Holy Glow, a Level 1 Light Element magic that could continuously restore stamina and Spiritual Power, and could also be applied to others.

With this magic, theoretically, a person could keep running at maximum speed without losing stamina, as long as they were alive, they could keep running.

This magic is particularly beneficial for beings below Level 1, especially knights who rely on physical combat.

For the Duke, it served to restore his Spiritual Power, saving on Magic Power recovery potions.

[Holy Glow: LV1 (1/100)]

Both Holy Dispel and Holy Glow were considered two types of buff spells that only required continuous Magic Power to maintain.

Next came the active type magic, for which the Duke chose the Light Arrow, a Level 1 Light Element curse magic.

His heart thought gently, maintaining the ongoing effects of Holy Dispel and Holy Glow, feeling the gradual and steady consumption of Magic Power within.

Meanwhile, the gentle energy from Holy Glow slowly nourished his Spirit, creating a subtle balance.

Coupled with the Earth Spring beneath his feet, the Earth Spring spell continually restored his Magic Power.

This allowed the Duke to maintain these two buff spells with almost no Magic Power loss, so much so that the Magic Power recovery rate was even faster.

The Earth Spring spell had been maxed out long ago, always providing the Duke with convenience in practicing magic proficiency, significantly reducing his reliance on Magic Power recovery potions.

The Duke raised his right hand, fingers spread, targeting the side of the laboratory designated with energy absorption and reinforcement runes, specifically for aiming.

He began to chant the rhythmic and ancient syllables of the Light Arrow incantation, drawing Light Attribute Energy particles around to his palm.

As the incantation progressed, the air in front of his palm subtly twisted, quickly forming an arrow composed entirely of highly condensed Light Energy.

The arrow measured about half a meter long, emitting a soft and pure white light with an extraordinarily sharp tip, exuding an inherent repellent aura towards negative energy and undead element beings.

This aura was an extremely pure Light Attribute Energy aura, naturally instilling fear in many Undead and Negative Energy Element beings.

[Light Arrow: LV1 (1/100)]

The Duke's Spiritual Power shifted slightly, locking onto the distant target.

The Light Arrow instantaneously shot forth, tracing a straight line of light in the air, precisely striking the bullseye.

A slight, burning sound ensued as ripples of runes appeared on the target's surface, rapidly absorbing the Light Arrow's energy, leaving a barely discernible white dot at the center, which soon vanished.

The laboratory's protective witch array perfectly absorbed the aftermath of the attack, with an instrument panel beneath the target displaying the number 95, indicating the attack's strength.

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