These Twelve-Rank Merit Golden Lotuses are the transformation of the seeds of the Chaos Green Lotus, while the Green Lotus Treasure Color Flag is one of the Innate Five-direction Flags transformed from five lotus leaves of the Chaos Green Lotus.

Both these treasures are innate supreme Spiritual Treasures, especially skilled in defense.

Moreover, with that Shariputra bearing the Dao Xing of Saint Jie Yin, the three great artifacts of defense were like setting up a turtle formation, truly making it somewhat difficult for Sect Hierarch Tongtian to launch an attack.

"Well spoken, well spoken—"

Seeing the successful block against this sword strike, the worry on Saint Jie Yin's face eased slightly as he chuckled: "It seems that although Tongtian Daoist friend's Sword Dao is peerless, there are still limits after all."

Having said that, Saint Jie Yin stood up from atop the Twelve-Rank Merit Golden Lotus, his body shining brightly with golden light, holding a Treasure Banner in hand as he struck towards Tongtian.

"Brother, please enlighten me!"

"Limits?"

Sect Hierarch Tongtian sneered coldly and pointed downwards.

"Swish swish swish swish—"

Under that hazy Array Map, four Immortal Swords enveloped in light appeared out of thin air, and then plunged straight into the ground.

In an instant, boundless fierce and malicious Qi gathered from all directions, and in the blink of an eye, a Great Formation that connected heaven and earth formed over Sumeru Mountain.

The periphery of this formation appeared chaotic and blurry, with foreboding clouds and blood-red skies; some Western Sect Disciples merely glanced at it from a distance and immediately felt their Primordial Spirits being torn apart.

As for what the interior of the Great Formation looked like, they could see nothing at all.

After the formation took shape, that hazy Array Map also slowly descended while spinning, rapidly merging into this Great Formation.

"Boom—"

In this instant, an indescribable vast killing intent shot up to the skies, instantly sweeping across the Three Realms.

Countless living beings in Primordial Heaven and Earth felt a chill inside, alarms blaring in their hearts.

...

Within the Pure Land, numerous Western Sect Disciples rushed to the entrance one after another.

Most of them were cultivating or meditating when the commotion outside woke them up; unable to sit still, they rushed out to check on the situation. Some of the more impetuous ones even thought about heading out immediately.

However, Dharma Protectors like Emperor Shitian, as well as direct disciples of saints like Pharmacist and Maitreya, stood at the entrance to prevent them from acting rashly.

A disciple with shallow Dao Xing inquired curiously, "Senior brothers, what kind of formation is that, and why does it emit such terrifying killing intent?"

Emperor Shitian's gaze flickered as he looked at the Great Formation for a while before finally saying softly: "That is the legendary number one killing formation of the Heavenly Dao, the Slaying Immortal Sword Formation!"

"Slaying Immortal Sword Formation?!"

Hearing these words, many disciples immediately breathed hurriedly.

Regardless of their level of cultivation, they all had some understanding of the Slaying Immortal Sword Formation.

Among the Immortal Gods of Primordial, a chant had been passed down since Ancient Times.

The rhyme goes:

Neither copper, iron, nor steel was used; once hidden beneath Sumeru Mountain.

No need for Yin Yang alchemical forging; can there be no edge from fire and water tempering?

To slay immortals keen, to slaughter immortals gone, trapping immortals with red light arising on all sides.

To utterly change immortals with endless marvels, the Daluo Immortals' robes soaked in blood!

It is said that the Slaying Immortal Sword Formation is the number one killing formation of the Heavenly Dao and also the signature technique of Upper Pure Saint, the Sect Hierarch of Jie Sect!

However, few knew that this Slaying Immortal Sword Formation was initially not in the hands of Sect Hierarch Tongtian but buried deep within Sumeru Mountain.

It is said that after the creation of Heaven and Earth, when the will of the Heavenly Dao was born, it was believed that this Sword Formation, despite its immense power, was too murderous and an ill omen. Thus, it was suppressed beneath Sumeru Mountain, wishing to use the Western Ancestral Vein to cleanse the malicious qi on the Four Swords of Slaying Immortal.

However, this formation then attracted the covetousness of Demon Ancestor Luo Hou.

Taking advantage of the pervasive Calamity Qi during the calamity, he incited strife among the three races, plunging the whole of Primordial into boundless slaughter.

During which, he absorbed the Qi of slaughter and triggered an explosion of Western Ancestral Vein Sumeru Mountain, extracting the Four Swords of Slaying Immortal and the Array Map from within, and then set up the Great Formation to slaughter all living beings in the world.

In the end, Hong Jun Taoist Ancestor along with Daoist Yang Mei, Qian Kun Ancestor, and Yin Yang Ancestor shattered the Slaying Immortal Sword Formation and also slew Demon Ancestor Luo Hou on the spot.

Since then, the Slaying Immortal Sword Formation fell into the hands of Hong Jun Taoist Ancestor.

He originally intended to refine and remove the malicious killing Qi within it but found that this Sword Formation was constantly absorbing the malicious killing Qi within Primordial Heaven and Earth. As long as there remained such Qi within Primordial Heaven and Earth, it would be impossible to completely refine it.

Therefore, Hong Jun Taoist Ancestor dismissed this idea and bestowed the formation to Sect Hierarch Tongtian, who was proficient in both Sword Dao and Array Dao.

Sect Hierarch Tongtian was naturally proficient in Sword Dao and Array Dao; the Slaying Immortal Sword Formation in his hands was akin to a tiger growing wings.

"Buzz—"

At this moment, Sect Hierarch Tongtian stood above the Slaying Immortal Sword Formation, his gaze swept across Saint Jie Yin and Saint Zhunti, scoffing coldly: "Since the two Daoist friends wish to be my enemy, then break my Slaying Immortal Sword Formation first!"

With his words, the entire Slaying Immortal Sword Formation suddenly shook violently.

The next moment, that tide of killing intent that swept across Primordial and filled all beings with terror vanished into thin air. Even the Great Formation itself gradually disappeared in front of the two Saints, leaving behind only four dark portals each facing the northeast, southwest, and northwest directions.

Wisps of Heavenly Dao Killing Power wandered in Heaven and Earth.

Those pitch-black portals, like ferocious beasts picking their prey, greedily awaited their victims to come forth.

Saint Jie Yin and Saint Zhunti exchanged glances, each seeing a hint of hesitation in the other's eyes.

The Slaying Immortal Sword Formation was indestructible unless all four Saints arrived.

This was personally declared by Hong Jun Taoist Ancestor when he bestowed the Slaying Immortal Sword Formation to Sect Hierarch Tongtian at Treasure Division Cliff.