If given enough time, Lux was confident that Diablo's damage would reach a staggering level.

Right now, the Skeleton Rider's bonus damage and defense had already surpassed ten thousand, which was considered immensely powerful.

Rank 4 Monsters weren't easy opponents, so even after many hours in battle, they only managed to kill a little more than two thousand of them.

If Diablo had only been fighting Rank 1 and 2 Monsters, perhaps his damage might have already surpassed over fifty thousand by now.

The Half-Elf already expected that this would be a long and drawn out battle. Their strategy was luring dozens of skeletons by batches because fighting over a hundred Rank 4 Monsters with their ranks would be too dangerous.

Healing abilities didn't work because the Death Tyrant was actively using its ability that prevented any restorative and healing skills from taking effect. Because of this, the Clerics and other Jobs, who were tasked to heal their allies, felt frustrated.

In the end, Lux couldn't do anything but let the injured pull back from the battlefield and towards the very rear of their temporary camp, so that the healers could tend to them.

Just as the Half-Elf thought that the Boss Monster wouldn't move from its location, it started to head towards their direction. However, for some reason, Lux thought that something was very off with the opponent that he was about to face.

When looking at it with his appraisal skill, the stats of the Monstrous Terror Death Tyrant wouldn't show. Even its name was made up of weird characters, and only its health was visible. But even then, something still felt off, yet he still couldn't put his finger on what was wrong with it.

-

< %#%@&#^% >

Health: 1,238,987 / 1,238,987

Mana: ?????

Strength: ????

Intelligence: ????

Vitality: ????

Agility: ????

Dexterity: ????

-----

'Is this some kind of bug?' Lux wondered.

There had been several times when the compendium wasn't able to determine the strength of the enemy, and only had question marks for the stats of the monster. However, this time it was different.

This time, even the name of the monster couldn't be accessed, which perplexed the Half-Elf.

"So the boss has decided to enter the fray," Einar said as he gazed at the approaching monster with a solemn look on his face. "What do we do now?"

"We retreat," Lux said decisively. "We are still unable to beat that thing. We need more time."

Vall frowned but didn't say anything. The skeletons that they had killed didn't drop any Beast Cores. However, that was not the main issue.

The problem was the shattered skeleton bones that could reattach themselves after half an hour, making the teenagers fighting them feel helpless.

Lux had told them that they would need to spend at least a few days in order to beat the Boss Monster, so they already expected that the battle wouldn't be ending soon. But knowing that they had to retreat once the Boss Monster personally made a move on the battlefield still frustrated them.

"Everyone pull back!" Cai ordered as it ran back to the area where the three leaders were located. "I may not be good at fighting, but I am very good at running away! Come after me if you dare, you overgrown eyeball!"

The Death Tyrant suddenly stopped hovering and aimed all of its eyes at the Boar who had taunted it. A few seconds later, all of its eyes emitted death rays, which were aimed at the Boar's direction, making Cai squeal in panic and run like there's no tomorrow.

The ground that the dark rays hit instantly turned completely black, making the other teenagers feel the hairs at the back of their necks stand on end.

All of them ran with all of their might, only leaving Lux's undead minions to cover their retreat.

The Red-Eyed Obsidian Skeleton King raised its Bone Shield and blocked the Death Tyrant's second barrage of Death Rays, shielding the teenagers completely from this deadly attack.

'Strange, if I remember correctly, each of the Beholder's eyes have a different ability,' Lux thought as he backed away just like everyone else. 'But all of the Death Tyrant's eyes can shoot Death Rays. Is this some kind of mutated species? Is that the reason why its name can't be read?'

Lux didn't know the answer to these questions right now because the Death Tyrant was still emitting Death Rays, which were being blocked by the Giant Skeleton King, who was quite resistant to it.

These ray attacks were especially deadly to living creatures, but it wouldn't deal much damage against the Undead. The Skeleton King would receive greater damage against the Skeleton Army, than fighting against the Death Tyrant, who seemed to only know how to use Death Rays.

"Orion, do it!" Lux ordered.

The Rock Golem roared as it charged towards the Death Tyrant with the intention of smashing its giant eye with its rocky fist.

Just as Orion was nearing its target, the Death Tyrant's giant eye flashed once, instantly making Orion's running speed come to a complete crawl.

After Orion's speed drastically slowed down, it was swarmed by the Undead Legion, and it was forced to defend itself by bashing and punching its enemies left and right.

The Death Tyrant wasn't being idle and once again shot Death Rays towards Orion. Unlike the Skeleton King, who was very resistant to the attack, Orion, although not instantly killed, received a lot of damage.

Little by little, its health dropped until it shattered into rubble.

Lux summoned his Soulbook and immediately checked Orion's Page. The first thing he looked at was the Rock Golem's revenge list and true enough, the gibberish name appeared on it.

--

< Revenge List >

1. < %#%@&#^% >

Number of Deaths: 1

---

Lux suddenly had an idea as he retreated to a safe place. Five minutes later, he once again summoned Orion, allowing the Rock Golem to attack the Death Tyrant for the second time.

Orion was a Revenger

When Orion is killed by an enemy, he will add the name of that creature in his Revenge List. The next time he faced the same enemy, all of his stats will increase by 200%.

Everytime he was killed by the same creature a 10% stacking bonus would be added to his increased stats.

Simply put, Orion could fight the enemy over and over again, until it reached a point where its stats would overwhelm its enemy, making them unable to kill it anymore.

In truth, this was Lux's Plan B.

If Diablo's increased attack and defense didn't reach the six digits before the Boss Monster's arrival, he would send Orion to confront it repeatedly.

By doing so, Orion would gain a massive increase in its stats after its repeated deaths, allowing it to get his revenge on the Monster that was making things difficult for them.

Even though Einar and Vall didn't know what Lux's summons were capable of doing, they weren't dumb.

They understood that the Half-Elf had a reason for repeatedly sending his Rock Golem to die against the Death Tyrant, who had been lured away from the horde of Skeletons that had stopped their pursuit and returned to the center of the Valley.

Over and over, Orion died. However, each time he was re-summoned, he would survive a little longer than before.

In the end, as if getting tired of fighting against the Rock Golem, the Death Tyrant blinked away several times until it had returned at the center of the plains, where the army of the dead protected it.

'Only 260%.' Lux sighed in his heart. 'This will be a long battle indeed.'

The Half-Elf then glanced at the members of the Rowan Tribe, the Barbarians, as well as Vall's guild, who were all currently resting.

All of them had done their best, and Lux had no complaints whatsoever. In the end, only his tireless Undead Army was left fighting. They used Ishtar's long range attack to attract a few skeletons towards them.

Although this was a pitiful attempt to raise Diablo's bonuses, Lux decided to leave the rest to his subordinates and take a rest as well.

Although he simply observed the battlefield, he felt drained because he kept on summoning the Skeletons, as well as the Rock Golems that were continuously dying.

In the end, he let Asmodeus take his place, as he went to sleep with the others. Since the Lich Lord could summon the same number of Skeletons that he could, there was no problem in keeping the battle going even if he wasn't monitoring the battlefield.

The teenagers had assigned watchers to keep a look out for any changes in the battlefield. Lux heavily emphasized that if the Death Tyrant appeared again, they should wake him up as soon as possible.

He planned to make Diablo and Orion his hard hitters during this battle, and he would make sure that their pesky enemy would finally be blown away by the counterattack that would happen once the Skeleton Rider and the Rock Golem gain enough power to conquer the Valley of Death, once and for all.