Chapter 657

Yun Shen said, "There's no rush regarding the cultivation technique. I plan to replicate a batch of this technique for backup. Once we build the 'Valkyrie Blood Pool' in the future and recruit more Bloody Valkyries, they will also be able to learn it."

He had originally intended to wait until he finished dealing with the world-class rare object advancement before having the Replication Black Box devour the *Extreme Dao Blood Demon Art* and then replicate the technique within his territory.

Even though Heather's favorability was maxed out now, Wu Xiangning was still in class, so it wasn't convenient to summon Heather to the Main World for the time being.

It was better to leave it for later; there was no rush, and he had no worries about a lack of combat power.

Heather felt a bit regretful, but she still nodded obediently.

Having waited this long, a day or two didn't matter.

"Phew, let's get everyone up to level 13 first."

Yun Shen pulled up the upgrade list and began to max out the levels of his heroes, troops, buildings, formations, and equipment.

Soul Crystals were absolutely sufficient. To ensure he wouldn't lack Soul Crystals for future upgrades, Yun Shen didn't use all of them to recruit and upgrade troops, but instead kept a large portion.

……

Ten minutes passed quickly, and the monster tide officially arrived.

Yun Shen activated the Seven Luminaries Rotation Formation flags he had already rearranged, triggering 【Seven Luminaries Soaring in the Sky】!

White, black, gold, green, blue, red, and yellow—seven star phantoms rose slowly from within the territory!

This time, the power of the Seven Luminaries Rotation Formation had received a qualitative leap compared to before!

This improvement wasn't due to the Strange Formation Eyeball; he hadn't even had time to use that world-class rare object yet.

The source of the improvement lay in the two other world-class rare objects he had just obtained: the Sun of Desolation and the Moon of Desolation!

This also belonged to a hidden effect; the two just happened to correspond to the Sun Star and the Lunar Star among the seven star phantoms!

Yun Shen had just had a sudden inspiration and temporarily mobilized the two to merge into the Seven Luminaries Rotation Formation, discovering that it was actually possible.

This change was as if the phantoms of the Sun Star and the Lunar Star had suddenly gained physical forms!

Subsequently, Yun Shen also used the Strange Formation Eyeball, causing the power of the Seven Luminaries Rotation Formation to soar once again!

The amplification from the three world-class rare objects allowed the Seven Luminaries Rotation Formation, which was already among the best of legendary formations, to reach the level of Mythical Grade in one fell swoop!

Legendary quality, Mythical intensity!

"With this intensity, even if Leandre came, he absolutely couldn't break it single-handedly! I might even be able to kill him in return!"

Yun Shen had never underestimated Leandre's strength. With Mythical talent plus Level 8 Divine Runes, he could only cope with him on the front lines after merging and superimposing Wu Xiangning's three-dimensional attributes and then activating the Clan Luck Favor skill.

Seeing the large number of monsters suddenly appearing outside the territory, Heather could no longer hold back and charged straight out.

The monster tide is also advancing toward the territory; this time it is not a siege, but rather they are all coming from a single direction.

Yun Shen chose to use the 【Five Elements Wall】 and 【Seven Luminaries Lost Track】 of the Seven Luminaries Rotation Formation!

With the amplification of the Sun of Desolation and the Moon of Desolation, the power of the 【Yin-Yang Twin Swords】 would certainly be more aggressive, but today was mainly to stack the kill count for the Slaughter Demon Sword, so there was no need to use the offensive capabilities of the Seven Luminaries Rotation Formation.

Today's wave of monsters was an all-Zerg legion, and the scale was very large, actually reaching a count of twenty thousand!

Yun Shen was a bit surprised; he hadn't expected that just by binding so few world-class rare objects and developing his territory a little, he could make the difficulty of his monster tide reach this level.

These Zergs currently besieging the territory were not weak; among them, thousands of Zergs had reached Epic quality, and there were even quite a few Legendary quality Zerg units.

Heather held her sword and charged up. The intense battle intent and strong fluctuations of Qi and blood could be clearly sensed even by Yun Shen, who was staying inside the territory.

With every sword strike Heather swung, blood-colored sword Qi would be unleashed, slaughtering all Zergs in its path!

These blood-colored sword Qi were not transformed from spiritual power, but from Qi and blood!

The power of the sword Qi unleashed in this way was very strong, and while it would be a huge drain for ordinary people, the Bloody Valkyries had extremely high physique attributes and very abundant Qi and blood power, making them capable of withstanding the consumption.

Coupled with the dual bloodthirst effect stacking, every dead Zerg would have its Qi and blood power automatically absorbed by Heather; the Qi and blood within her body were almost overflowing—she couldn't use it all!

She had the confidence to win this war of attrition single-handedly!