Corpse Guardian

In the deepest level of the 100th floor, our lovable six main characters: Wildcat, Basically, Terroriser, Draila, Peter, Sokushi, Xavier Number 2 and the armored Warden were in a large spatial room with over a hundred large pillars in each sides, they were hiding in the entrance of the giant room as they see the enormous Throne room is filled with dozens of bodies of deceased Adventurers.

Sitting in a throne made of countless bones was an Undead type monster with a crown on its head and dressed up as a King.

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Standing on the side of the monster was another undead, and compared to the undead in the throne, it was huge, even taller than the latter himself. This hulking undead seems to be a fusion of multiple skeletons. Its upper torso is comprised of several rib cages and six skull heads. On its right shoulder, it had a spiked ossified pauldron. Its upper limbs are asymmetrical as the right hand is skinny while the left is a massive four-fingered claw with a nail impaled at the center. 

Releasing a dark aura behind it made every enemy feel even more dread. It wore a simple tattered black robe, and around the undead were multiple chains. Their usefulness was still unknown. As its main weapon, it possessed a great halberd made of dark iron, making it look like the Grim Reaper himself except it wielded a halberd instead of an scythe. In the middle of the two blades, where they were connected, a symbol of a skeletal being was engraved. Most likely to honor its master, the Lord of Death. And with all that, it even stood 2.5 meters tall, making every human look small to it.

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"So... that's a Dark Soul boss?" Terroriser inquired.

"You can say that."

"Jesus, he just literally massacred an entire party of C-rank adventurers." Wildcat remarked, gazing at the throne room, filled with a considerable amount of corpses. Not too long ago, the group were just passing by until they came across this area section. They heard a battle in the distance and when they arrived, they all let out a look of fear of seeing an entire party, filled with thirty D-ranks and seven C-rank Adventurers being massacred by the undead.

"Of course, Corpse Guardians are pretty much a deadly undead with insane combat capabilities." Peter began to explain, starting by pointing at the Undead humanoid on the throne, "That one undead with the crown over there is a Death Emperor, one of the most powerful undead in the world. It was said it was able to slaughter an entire army by its aura alone, which consisted of four levels: One that causes fear, panic, confusions, insanity, and instant death once you get closer to it."

Hearing its abilities of instant death, most of them, especially our three members of Team 6 shivered.

Peter explains about the Death Emperor. It has five layers of its passive skill called [Despair], once you get close a kilometer from it, you'll feel a dread of fear. More than five hundred meters you will feel panic and attempt to run away. More than two hundred fifty meters, you will feel confused, which gives your enemies the opportunity to finish you. A hundred meters, you will lose your sanity, in a mental breakdown and you will be in a mental hospital for a very long time as a result. Fifty meters, that one is the worst of all than the other four, instant death.

"Wait a minute, we're in its radius, how are we still okay?" Basically questioned them.

Well, from what Marcel had asked, there is indeed a possible way to be immune to that ability, is to reach above the Intermediate Realm. The stronger the individual gets, the higher is their resistance against the effect of the aura. Furthermore, if they want an easy way, use a special spell, skill, or a magic item to be immune to it. Luckily for our heroes, they have one.

"Simple, Sokushi specializes in nullifying Death Manipulation spells and skills. So beating them without dying without a fight is not a problem. But the only problem that we have is that both of them are ranked A."

"Damn, it'll be easier if we have Delirious here, probably he can talk to them like brothers." Wildcat stated, which causes everyone except his friends to look at him in surprise.

"Hold up! Your mask friend is an undead?!"

Frozen in place, Wildcat widened his eyes and cursed, "Well, shit."

"Tyler! You just exposed Delirious!" Terroriser shouted at him angrily.

"Guys, I don't think we don't have the time to argue! Our argument just got its attention!" Draila called out in nervousness, looking at the two Undead creatures that had caught them in their sight.

"Son of a bitch! How are we supposed to defeat these two A-rank motherfuckers?" Basically asked, same feeling as Draila as he instinctively took a step back, "Did you see what they did to those Adventurers! They can kill our asses without breaking a sweat."

"Don't forget we have body enhancing potions." Terroriser reminded.

"It'll not be enough."

"Then use your big brain skill or something."

"I can figure out anything, but I can't figure out how to kill two or three Realms higher than us!"

"Guys, shut the fuck up! One of the Corpse Guardians is coming!" Draila shouted on top of her lungs to get their attention. 

Like what she said, the large figure of the Corpse Guardian sprinted at the group at insane speed, it raised its large halberd and struck it down at Peter.

"What th-" Peter couldn't even catch it because Rank's speeds are ridiculously at another level. Even his beast's senses are not enough to catch it.

Clang!

Before the halberd could cut the bear demihuman in half, Xavier and the armored Warden both instantly sprinted in front of Peter and just in time to block the attack with both of their enchanted shield, netherite sword, and the combination of the Minecraft's strongest mobs' strength. However, the Corpse Guardian is much superior in strength as it sends the two flying a few meters away.

Switching to offense, Xavier then dashed at the Corpse Guardian and swung its Netherite Sword at it but the Corpse Guardian easily blocked it. The Warden meanwhile also swung its Sword but the Corpse Guardian repeated it.

Our main characters couldn't even do anything about it, Corpse Guardians are unlike any other monsters they were facing, these monsters were the strongest undead monsters when it comes to physical strength.

Lifting its axe, the Corpse Guardian sends out multiple slashes made out of dark energy as it tore through the air, aiming straight at the two Minecraft mobs. However, Xavier Number 2 brought out his Enchanted shield to defend against the attacks. 

Swoosh! 

At a brief moment, the Corpse Guardian suddenly switched places with Xavier at his back when the Warden brought down his Netherite Sword.

Clangs! Crack! 

The shield held by Xavier got broken by the shield. 

"...This is boring." Wildcat deadpanly said as he and the rest observe the fight, "Are we gonna stay here and do nothing until our ONLY fucking trump cards were killed?"

"What are we supposed to do then? What about your little wormholes or something, do you have any holy weapons you can find?" Draila said to him.

"Dumbass, it's not that easy. I have like literally thousands of weapons, I only picked random shit inside, I'm not really actually that guy."

"Hold on a minute! Holy weapons..."

Turning her gaze at Sokushi, Draila immediately asked him something, "Sokushi, do you remember the time we traveled to the 96th floor last year? Do you still have that item?"

"You mean-"

"Of course that one!"

Taking out something from out of thin air, Sokushi pulls out a crystal ball, bigger than a human head, inside and appears to have two energy roaming around inside.

"What is that?"

"Don't know the exact name, but it's a powerful Rank artifact we found in the 96th floor of the dungeon a few years ago, it could instantly kill only one undead in its surroundings, bypassing their immunity and defenses and disintegrating them into nothingness! But you better be careful because if you mess it up, it could destroy Orazvil in an instant."

"Wait! Your friend kept an Atomic bomb in his pocket?!"

"Um... you can say that. But don't worry, that crystal ball is nearly indestructible, none of us could break it easily unless someone has the strength of a Demigod or a spell capable of destroying it." Draila stated, she also has a confused look from what Brian said, and doesn't really know what an atomic bomb is actually.

Swoosh! Bam!

Looking at the crash, they saw Xavier and the Warden's bodies, with various cracks and injuries in both of their armor and a broken shield. Xavier the Great, including Minecraft's toughest mob has been defeated!

"Shit, we don't have any time! Sokushi, use it!"

Sokushi nodded and fueled the crystal ball with most of his mana into it.

The Corpse Guardian immediately notices the danger and tries to stop the blue-headed Asian dude. Carrying its axe with both of its hands, space began to tremble as dark magical energy began to coat its arms and its axe as it was about to use one of its strongest skills for the first time.

With the voice of various people, the Corpse Guardian spoke in a cold and ominous tone.

"[Mass Grave Legion]"

With a simple swing, a linear white line was drawn in the air as if reality was about to split apart, followed by a dangerous rumble that reverberated off the entire floor. Within an instant, all of the pillars in the throne room were sliced in half and collapsed to the ground, creating an enormous dust cloud.

And the speed... the speed of it was so fast that nearly everyone sees it as an invisible blur.

Thinking it might have killed the group, the Corpse Guardian was about to return to its master when all of sudden, its senses quickly alarmed it, it instantly turned around and noticed within the cloud of dust it had made, it revealed the group were still alive, but seemed translucent at a moment.

As it turns out, Sokushi uses a skill to transform him into his Phantom form, a unique kind of skill to become untouchable where physical attacks have no use against him, and could also travel to the 4th dimension. Moreover, not only he could do that, he can also share it with his allies, this is why they survive unscathed from the Corpse Guardian's attack.

For the first time, the Corpse Guardian showed a trace of fear. Its eyes from all of its skulls flickered and was about to rush at them quickly.

However, it is already too late as the crystal ball lightens up the entire room, blinding everyone as a ball of energy comes out and shoots towards the Corpse guardian at deadly speed, hitting it.

At a brief moment, its form began to disintegrate as the Corpse Guardian could only muster with a look of disbelief as the balls of holy energy had impacted it, it wailed with an otherworldly cry and then fades away. Our main characters cheered while Marcel and Peter heals Xavier and the Warden that nearly died.

Meanwhile, the Death Emperor who is sitting in its throne finally raises its head, staring at them with a look that could kill all life with just a glance.

The group glance back at it, they move past the area where the Corpse Guardian dies and readied themselves to face the Death Emperor personally. Will they stand a chance against an Rank monster, the Ruler of Death? In the end, it will be mostly luck that could save them.