The complexity of Rock Armor is N5, Duke carefully studied this magic, fortunately, he had mastered quite a lot of knowledge during this period, so reading it was not too difficult.

Many pieces of knowledge are actually interconnected, weaving together like a network, there's always a point of convergence.

Duke spent a few days understanding this magic, and then began to construct the magic model of Rock Armor.

He closed his eyes, a blue thread of spiritual power in his mind constantly winding around, forming a slightly complex hexahedron.

This process must be completed meticulously and cannot be interrupted, requiring a high level of concentration of spiritual power.

After Duke completed this magic model, he finally breathed a sigh of relief.

He still came to the forest outside the dormitory area, a place where usually few people came.

Gazing at the magic model of Rock Armor in his mind, Duke activated it with magic power, and his body began to absorb the surrounding earth elements, gathering them on the surface of his body.

The denser the surrounding earth elements, the faster this process will complete.

In a moment, Duke's entire body was already covered by a layer of earth-colored Rock Armor, making him look like a stone man.

Duke could feel his body becoming noticeably heavier, but this weight was nothing to him and did not affect his movement.

If an ordinary wizard apprentice does not have a strong physique, their body will become very heavy after releasing this magic, making movement cumbersome.

The magic of Rock Armor mainly enhances defensive capability, and the armor covering the body is not ordinary rock, but made of pure, dense earth elemental energy, providing good defense against energy attacks.

Ordinary swords and knives are out of the question, even the Black Sword in Duke's hand can't leave a white mark on the Rock Armor.

The defensive strength of this level of Rock Armor is around six to seven degrees, and it can be gradually enhanced later.

This was Duke's first time casting it, and he hasn't yet increased its proficiency.

Once the skill's proficiency increases, the Skill Tree will naturally provide some knowledge and experience to help Duke optimize it.

However, raising the proficiency of Rock Armor is estimated to take some time, as it consumes a lot of magic power, and the number of times it can be cast each day is limited.

Unlike the Water Arrow Technique and Water Shield Technique from before, which could be freely cast in the sea and consumed very little magic, their proficiency increased rapidly.

Duke maintained the state of Rock Armor, took out the Black Sword, and practiced basic swordsmanship routines.

This was mainly to adapt to the movements under the weighted condition, allowing for a clear understanding of his own strength and speed.

After mastering Rock Armor, Duke continued to delve into the Petrification Skin magic.

Both are defensive type earth element magics and have similarities in some aspects.

The Petrification Skin magic can make the skin all over the body as hard as stone, but actually harder than stone.

After all, ordinary stones can't resist magic energy.

Having the experience of Rock Armor, Duke mastered Petrification Skin in a short time.

With a thought, he watched his skin turn a bit pale, touched with another hand, he could clearly feel the texture of stone.

Holding the Black Sword, Duke tapped it on his hand, producing a metallic clashing sound.

Now Duke felt that just relying on this magic, he could charge through the noble army back home without harm, just by collision he could kill, remaining unscathed.

The Petrification Skin doesn't have to stone the entire body, parts of the skin can be petrified according to one's will.

After the skin is petrified, it does not affect its original functions, Duke bent his fingers and they were as flexible as before.

Duke suddenly thought of some ingenious uses for this magic, tried it out, and indeed it worked, it was really hard.

"I'll have a chance to let Vivian experience the wonders of this magic," Duke thought as he stroked his chin.

But actually, he didn't much need this magic, perhaps for older people, this magic might be useful.

The defense capability of Petrification Skin is not as strong as Rock Armor, with a defensive strength of only two to three degrees, almost just half of Rock Armor.

However, Petrification Skin is more flexible, without the burden of weight like Rock Armor, more suitable for most wizard apprentices, after all, not everyone has Duke's physique.

Duke tried the combination of Rock Armor and Petrification Skin, instantly feeling a sense of full security, a feeling of seamless protection from inside to outside.

If he also activates the protection of the Round Table Knight, the sense of security would be even greater.

After a period of trial, testing, and recording some data, Duke gained a more detailed understanding of the strength of these two magics.

With detailed understanding, he can clearly know whether these magics are effective when facing some situations in the future.

After researching Rock Armor and Petrification Skin, Duke began to master the Rock Spike magic.

This is the only offensive magic among the four magics Vivian sent, Gravity Slowdown is control and auxiliary type magic, and the hardest, Duke planned to study it last.

There are two ways to cast the Rock Spike magic, one is to absorb the surrounding earth elemental particles, condense into a rock spike, and then manipulate it for attacks.

Another way is to directly use earth elements from the current ground to condense into a rock spike attack.

The latter is more sudden and harder to detect, suitable for ambushing, able to summon a rock spike under the enemy suddenly to launch a raid, piercing the enemy directly.

However, this method has distance limitations, requiring certain intensity of spiritual power and ability to control earth elements.

Due to Duke's elemental affinity talent, he can manipulate the ground within a thirty-meter range to form rock spikes, ordinary wizard apprentices can only reach about ten meters.

This range far exceeds the common sense range of ordinary people, making it easy to launch ambushes when the opponent thinks they are at a safe distance.

But there's only one chance, once missed the opponent will be guarded.

The attack strength of Rock Spike is not high, only one to two degrees, this is still due to Duke's sufficiently high spiritual power.

This is one of the characteristics of earth element magic, excellent in defense but not proficient in attack.

Actually, saying so is not accurate, it should be limited to the realm of wizard apprentices.

Once entering the domain of official wizards, the earth element magic they can wield becomes much stronger.

With the high-level earth element affinity talent, Duke quickly mastered these three magics.

For an ordinary wizard apprentice, mastering earth element magic is not easy, as earth elements are notoriously difficult to manipulate, very cumbersome, heavy, not as light and easy to manage as wind elements or water elements.

If you find any errors ( broken links, non-standard content, etc.. ), Please let us know < report chapter > so we can fix it as soon as possible.