Li Rui picked up the Remnant Thunder Echo and fused it with the legendary equipment, the Golden Scale White Dragon Amulet, which carried the Dragon Thunder. As expected, among the original four entries, the other three were also activated.

[Special Effect 1: All equipment cooldowns reduced by 30%.]

[Special Effect 2: Total spiritual power increased by 50%.]

[Special Effect 3: Thunder attribute damage increased by 20%, Thunder attribute skills carry the Dragon Thunder effect.]

At this moment, in the skill bar, the All Heaven Great Thunder Fire Seal Spell, formed by the fusion of Community Thunder and Divine Thunder, changed once again, becoming the All Heaven Void Thunder Fire Seal Spell. Clearly, it incorporated the attributes of Dragon Thunder.

Of course, this is the ultimate move, but before that, Dragon Thunder can combine with Community Thunder and Divine Thunder in pairs.

[Void Spirit Golden Light Spell: Impairs targets in a fan-shaped area, temporarily slowing their movement speed and reducing their perception capacity, enhanced by spiritual attributes.]

[Void Flame Spell: A high-frequency damage skill with low threat value, enhanced by spiritual and powerful attributes.]

Li Rui glanced at the battlefield at the Barbarian Monarch level but did not rush in, choosing instead to first move to Cheng Mingyue and Guan Gui’s side. One reason was to help alleviate the pressure they faced from the numerous enemies, and another was to test the application of the skills.

He charged into the enemy ranks, slapping out his hand, and brilliant golden light surged out in a fan shape, causing all the Barbaric Beasts facing him to lose focus instantly, much like a flashbang had been thrown.

Next, Li Rui didn’t rush to slaughter them all, but observed secretly. These Barbaric Beasts, which originally had robust physiques and were burdened with great strength, now appeared as if they truly carried the weight of a thousand catties, moving as if underwater, with every action subject to strong resistance.

If it could be described, those Barbaric Beasts would feel as if they were running in a dream, exerting considerable effort but seemingly unable to use it fully.

However, they didn’t have to and wouldn’t have the chance, as after Li Rui saw the effect of this move, he used the second skill.

The Void Flame Spell, as stated, is a high-frequency damage skill. The combination of Dragon Thunder, which is water-based, and Community Thunder, which is fire-based, exudes scorching steam but has an illusory and unreal feeling.

The fragmentary and changeable thunder danced all over from various angles, and clearly, the skill description was not a lie; under the influence of the Void Spirit Golden Light Spell, the Void Flame Spell with already low threat value made them unable to feel anything.

Those Barbaric Beasts lost their lives without any awareness.

This is the attribute direction of Dragon Thunder, concealing itself and disrupting the enemy. It doesn’t provide speed like Divine Thunder nor is it aggressive like Community Thunder; it’s a supportive kind of thunder that can harmonize with the others.

"Can you guys hold on? I’m going to help the Daoist."

Li Rui asked the other two.

"We can." Guan Gui answered.

Cheng Mingyue said, "I’ll give you some longer-lasting buffs."

She was undoubtedly concerned that Li Rui could encounter danger in a Barbarian Monarch-level battle, but couldn’t abandon Guan Gui due to emotional bias, hence she opted to change the previous short-term support scheme, granting Li Rui several buffs lasting three to five minutes.

At this moment, the effects of those Thunder Hearts Li Rui used hadn’t dissipated, and he gained the last three forms of rabbit, dragon, and snake, leaving him in good condition; thus, he directly activated the Shenxiao Thunderbolt Heart Scripture and arrived beside Jingming.

"Young Daoist, I’m here to help you!"

Facing Li Rui’s sudden intervention in the bout, the two Barbarian Monarchs were dismissive; what they dreaded was Shenxiao Palace, not some unknown Human Race member.

The only thing that didn’t let them completely drop their guard was the golden light on Li Rui, which was obviously a method of Shenxiao Palace, and on this point, the two Barbarian Monarchs were knowledgeable.

"Young Hero Li, could I trouble you to hold off the Scorching Barbarian Monarch? I’ll take care of the other one, it’ll just take a moment."

With his form changed into that of a three-headed, six-armed Divine General, Jingming was entirely different from before, his voice carrying a thunderous tremor, his momentum much stronger.

Upon hearing this, Li Rui naturally complied.

The Scorching Barbarian Monarch’s true form was an Earth Fire Evil Dog; it stood amidst the ruins of the Palace City’s main hall, surrounded by rolling heat waves that made it impenetrable.

Upon hearing Jingming task Li Rui with holding him off, the Barbarian Monarch grew enraged.

"Since you seek death, I shall oblige you!"

"Roar—"

With a roar, blazing fire spewed from the massive evil dog’s mouth, akin to a volcanic eruption, scattering scorching magma that engulfed the nearby Barbaric Beasts.

But suddenly, the Scorching Barbarian Monarch stopped because he couldn’t find that Human Race’s aura anymore.

Such a situation was exceedingly rare, given his evidently higher realm and skills, it was implausible to lose track.

Unless...

Growing cautious, as a Barbarian Monarch of the Golden Scale Marsh, he was very familiar with Dragon Thunder and aware of its trait of concealment.

Puff puff puff puff!

When the Void Flame Spell struck his massive body like a downpour, the Barbarian Monarch confirmed his suspicion.

"Whelp!"

Although he couldn’t feel the skill’s onslaught, he, being an NPC of the world, locked onto Li Rui’s location the moment he made a move.

"Roar!!!"

The burning long tail swept down fiercely, the ground shattering into pieces, turning stones ablaze.

Li Rui was startled, nearly getting hit; fortunately, he had the Thunderbolt Flash.

"Indeed, not a moment can be spared for negligence."

Even though he was fully buffed, without controlling assistance, this was his first solo challenge against a world NPC, necessitating caution.

Testing with the Void Flame Spell earlier, he discovered that the combination of two Thunder Skills could have some effect on a world NPC, albeit minimal, only leaving shallow marks on the Scorching Barbarian Monarch’s massive body, which healed rapidly within breaths.

He knew he must unleash a big move to significantly harm the opponent, with the only problem being how to ensure that skill fully hits its mark without taking himself down in the process.

Boom boom boom!!

While he pondered, the Scorching Barbarian Monarch wouldn’t wait.

The evil dog, enveloped in heat waves, constantly forced magma to erupt all over, with paw swings and tail sweeps ceaselessly following through.

Li Rui had to continuously maintain the Shenxiao Thunderbolt Heart Scripture, coordinating with the Instant Wind Nine Turns to barely dodge.

Yet, he should be thankful for the strong winds brought by the high heat, greatly increasing the speed of his Wind Escape Skill, without which, he might not have been able to keep up with the opponent.

In the not-too-long entanglement between the two, the surroundings had already turned into a sea of flames.

Li Rui estimated that, even with Cheng Mingyue casting control skills, it would be hard to restrain the Scorching Barbarian Monarch.

While contemplating, another stream of fire surged down, forcing him to first ascend with the Instant Wind Nine Turns, then utilize Golden Spear and Armored Cavalry assaulting towards the Scorching Barbarian Monarch, deploying Thunder Shocking Earth to strike the enormous Barbarian Monarch’s body.

The melee physical damage successfully ripped the Scorching Barbarian Monarch’s flesh but was a mere drop in the bucket; the recovery strength of the manifested Barbaric Beast Monarch was incredibly formidable, not incurring any lethal impact.

"Is that all you’ve got?"

The Scorching Barbarian Monarch sneered, "If so, it’s my turn."

Li Rui felt his heart skip a beat because the remark came from behind.

The Earth Fire Evil Dog continued wreaking havoc in front, yet, the Scorching Barbarian Monarch’s human form appeared behind him.