Starting with the Immortal Cultivation System, what can you use to fight me?

"Amitabha, benefactor Wu Wang, lay down your butcher knife and become a Buddha right here. Why persist in your wrongdoing, harming others and yourself?" Following this compassionate and solemn chant, an old monk in a golden robe slowly stepped into the clearing. His face was kind, and a transcendent tranquility shone between his brows. Sunlight filtered through the sparse clouds, illuminating him with a divine glow.

"I didn't expect you, an old bald donkey like Huikong, to be here too. What a lively scene!" The Witch King's expression changed slightly upon seeing this, but then he returned to his sneer. "You three great sects have come together. It seems you're going to kill me today."

Master Huikong clasped his hands together, his eyes filled with compassion and determination. "Donor Wu Wang, you have committed countless evil deeds and killed countless people. You have long been the wrath of heaven and the hatred of mankind. Today, for the sake of all people in the world, we will bring you to justice."

"Haha... Even if the three of you come together, you are still no match for me! This is ridiculous!" The Witch King laughed wildly, his voice echoing in the valley, shaking the leaves.

"What about me?" At that moment, a middle-aged man in a gray robe suddenly appeared in everyone's sight. He was tall and straight, with a stern face and a gleam of wisdom and determination in his eyes. This man was Master Zi Yu.

"Hmph, I didn't expect you old guys to mobilize such a large force when I came out this time. But it's good, let's catch you all in one fell swoop to save trouble in the future." The Witch King sneered, and the black energy around him instantly became several times thicker, as if it was going to swallow up the world. A shocking war was about to break out.

True Man Zi Yu slowly stepped forward, standing shoulder to shoulder with True Man Wang Ye, Zhang Daoxuan, and Master Hui Kong. These four Grandmasters faced the notorious Sorcerer King together, surprisingly not losing momentum. The spiritual energy within each of them surged like a raging river, ready to pour forth at any moment to deliver a fatal blow to the Sorcerer King.

"Witch King, you have committed many evil things. Today is your end." Master Zi Yu's voice was cold and without any emotion, but every word was like a sword, piercing the Witch King's heart.

The Witch King's sneer deepened. Several tentacles extended from the black energy, like ghostly hands from the underworld, attacking the four masters. Seeing this, Master Wang Ye swung his sword, and his righteous energy condensed into a brilliant sword beam. It collided with the tentacles with a deafening roar, and the sword beam and the black energy intertwined, shaking the very space.

Zhang Daoxuan summoned an ancient bronze mirror. A flash of light appeared within, and dozens of bolts of lightning roared towards the Witch King like dragons emerging from the sea. Each bolt held the power to rip the void apart. Master Huikong formed hand seals, and Buddha's light shone forth. Golden Buddha seals transformed into Vajra Arhats, roaring and charging towards the Witch King, attempting to subdue him.

True Man Zi Yu was not willing to be outdone. He slightly opened his red lips and exhaled a breath as fragrant as orchid. In an instant, the air around him seemed to solidify, and then an invisible air wave spread out from him as the center. Wherever it passed, the black air released by the Witch King was slowly forced back, revealing his slightly astonished face.

Master Zi Yu flipped his hands, outlining mysterious patterns in the air like brocade. These patterns quickly condensed into a huge water mirror, reflecting the distorted figure of the Witch King. Then, the water mirror suddenly shattered, turning into countless tiny water droplets, each drop of which contained sharp sword energy, shooting towards the Witch King densely.

"I'll show you my true strength!" the Witch King roared, his body seething with black energy, threatening to drench the world in darkness. He suddenly opened his arms, and an unprecedented surge of dark energy erupted from his body, transforming into a massive black vortex that devoured the attacks of the four masters one by one.

“This…this…” The four of them all changed their expressions slightly. They obviously didn’t expect that the Witch King’s strength was so terrifying that he could withstand the joint offensive of the four of them at the same time.

However, just as they were stunned, the Witch King suddenly sneered, a smile that concealed a hint of cunning and madness: "Do you think this is the full extent of my power? Humph, today I will show you what the true pinnacle of witchcraft is!"

Before he finished speaking, the Witch King's figure suddenly faded, as if blending into the surrounding darkness, leaving only eerie laughter echoing through the dense forest. Immediately afterwards, the surrounding air began to violently fluctuate, as if countless invisible hands were tearing at the space, and a terrifying pressure surged from all directions.

"Be careful, he is going to use forbidden witchcraft!" Master Huikong warned everyone with a serious expression.

Upon hearing this, Master Wang Ye, Zhang Daoxuan, and Master Zi Yu were all startled. They quickly adjusted their state and prepared to face the Witch King's more fierce attack.

Bang Bang Bang!

Suddenly, the ground shook violently, as if a great beast had awakened. The surrounding landscape began to distort. Trees and rocks were uprooted and then smashed down by an invisible force. Dust and debris flew everywhere, obscuring vision. The Witch King's figure loomed in the darkness, each appearance accompanied by a shrill scream. He manipulated the forces of nature to launch a frenzied attack on the four masters.

"Using heaven and earth as the furnace, all things as the guide, witchcraft: Netherworld Purgatory!" The Witch King's voice was deep and eerie. As his words fell, the entire space seemed enveloped by a deep, netherworld aura. The temperature plummeted, and the air was filled with the scent of death. All around, illusory ghosts and shadowy creatures gradually formed. They roared and screamed, pouncing on the four masters.

"Everyone, form a formation together!" Master Huikong made a prompt decision and shouted in a deep voice. He moved his body and jumped to the center of the crowd. He quickly formed seals with his hands, and golden Buddha light flowed through his fingertips, eventually converging into a huge golden Buddha statue. The Buddha statue was solemn and compassionate, emitting a warm and firm light, tightly protecting the four people.

"The sky and the earth are boundless, Qiankun borrows the law, and the Three Purities control the formation!" Master Wang Ye followed closely behind, pointing his sword to the sky, with lightning flashing on the tip of the sword. With a low shout from him, the sword light turned into countless tiny lightning snakes, surrounding the golden Buddha statue, and intertwining with the Buddha's light to form an indestructible defensive barrier.

Zhang Daoxuan closed his eyes and concentrated, muttering to himself. The ancient bronze mirror in his hand shone brightly, reflecting the sun, moon and stars, as if the power of the entire universe was condensed in it. The bronze mirror turned slightly, and the power of the stars turned into bright starlight, penetrating the Netherworld and adding a bit of mysterious power to the defensive barrier.

Master Zi Yu had a graceful figure, and was moving through the netherworld purgatory like a ghost. He kept making seals with his hands, and each seal was accompanied by a slight distortion of the surrounding space. Countless tiny water droplets condensed again, but this time they were no longer sharp sword energy, but turned into purifying rain. Each drop contained the power to purify all evil, and gently fell on those illusory ghosts and shadow creatures, causing them to gradually dissipate into nothingness.