Summon the Villain: Marvel.

Thanos stared at Ancient One coldly, with a hint of disdain in his tone: "Ancient One, your destiny should have ended. Go to eternity and accept your end..."

Gu Yi smiled slightly, with a glimmer of wisdom in his eyes: "So, your destiny must wait until my destiny ends before it begins? It seems that your understanding of fate is still superficial."

Around them, the sound of fighting continued to sound like thunder, the roars of the warriors and the collision of weapons filled the entire space, and the air was filled with the smell of gunpowder and blood. However, the two seemed to be on the sidelines, and their conversation was full of strong hostility.

Thanos smiled coldly and slowly raised one hand: "Before coming here, I had already made preparations. Now, with a strong man like you here, I have the opportunity to show you the weapons I prepared for you."

As he spoke, a strange weapon gradually appeared in Thanos's hand. It was a giant blade made of black metal, long and sharp, with complex runes engraved on the blade, emitting a chilling breath of death. The whole weapon seemed to be wrapped in endless darkness, with a faint glow on the blade, as if it could easily take the life of a living being with just a slight movement.

Ancient One's eyes narrowed slightly, and he could clearly feel the powerful "death" power contained in this weapon. That power seemed to come from the deepest part of the universe, full of the intention of destruction and end.

"It seems that you are indeed well prepared for today's battle, Thanos." Ancient One's voice was still calm, but there was a hint of contemplation in it, "However, the power of death is not something you can fully control."

Ancient One took the lead, drawing a complex spell in the air with his hands, and the power of time instantly spread around him. As he moved, Thanos' body began to age rapidly, as if his time was being stretched rapidly, and he aged hundreds of years in an instant.

Thanos felt the changes in his body, and a ruthless light flashed in his eyes. He said in a low voice: "Is this the means you want to use to stop me? Ridiculous." Then, he slowly raised the weapon in his hand, and the strange giant blade exuded a strong breath of death, as if the end of the entire universe was condensed in it. "Death Scythe," Thanos whispered its name, with an extremely cold voice, "In front of its power, the passage of time will be ineffective."

As the Death Scythe swung, the time magic that Ancient One had cast on Thanos was instantly dissolved. Thanos rushed towards Ancient One without hesitation, and the huge scythe cut through the air, attacking Ancient One with the power to tear everything apart.

Ancient One's eyes were like torches, and he quickly retreated. At the same time, he formed seals with his hands and cast time magic again, trying to interfere with Thanos's attack. He dodged and smiled, "It seems that you have indeed prepared a lot of tricks for today, but I am not too old to be unable to move."

Thanos swung his death scythe, and the blade drew a black arc in the air, heading straight for Ancient One's chest. Ancient One quickly dodged sideways, his figure as light as a phantom, and then pushed forward with his right hand, and a force of time turned into an invisible barrier to block Thanos.

The sickle blade hit the barrier with a low roar, and the barrier cracked instantly. Thanos took advantage of the situation and stepped forward, clenched his left fist, and hit Ancient One's abdomen with great force. Ancient One quickly crossed his hands and cast time magic to delay Thanos' fist for a moment, and at the same time took a step back, narrowly avoiding the attack.

Thanos refused to give in, and suddenly turned around, slashing the sickle from bottom to top, straight to the throat of the Ancient One. The Ancient One waved his right hand, and the power of time distorted the space. The Ancient One instantly disappeared in front of Thanos and appeared behind him, condensing a spiritual energy in his hand and hitting Thanos' back directly.

Thanos felt the attack from behind and turned around quickly, sweeping his sickle blade across to deflect Ancient One's attack. Ancient One took a few steps back again, the time spell in his hand kept changing, and several time streams rushed straight towards Thanos, trying to trap his movements.

Thanos was not afraid at all, the Death Scythe in his hand danced like the wind, splitting the stream of time, and at the same time suddenly jumped up, slashing the scythe from top to bottom at Ancient One. Ancient One quickly dodged, then put his hands together, and a powerful time shock wave went straight to Thanos, knocking him back a few steps.

After Thanos felt the power of Ancient One, he immediately swung his death sickle, and a dark energy burst out from his palm and rushed straight towards Ancient One. At the same time, Thanos rushed forward again, the sickle flashed with a dark light, drew a deadly arc in the air, and slashed at Ancient One fiercely.

Ancient One was not afraid at all. He quickly turned his body to avoid Thanos' attack and quickly counterattacked. He flexibly formed seals with his hands and instantly condensed a blade of time, which went straight to Thanos' chest. Thanos swung his sickle to block the blade of time, and then punched Ancient One fiercely, with a whistling fist and a powerful impact.

Ancient One dodged deftly and kicked Thanos in the side with a swift and precise move. Thanos had anticipated this and quickly grabbed Ancient One's ankle with his other hand, trying to throw him to the ground. Ancient One immediately changed his body shape, used the force to do a backflip, and landed lightly on the ground.

The two approached quickly, Ancient One's fists and palms carried powerful spiritual power, and each fist and palm contained the interweaving of time and soul. Thanos mainly used the Death Scythe, which was wielded with unmatched destructive power. Every time the scythe fell, a tearing sound of "hiss" would be heard in the air.

During the fierce battle between the two, Thanos suddenly shook violently, and the Death Scythe burst out with a strong dark aura, forming a death field. In the field, several death ghosts emerged from the darkness, making strange "chi chi" sounds and quickly attacked the Ancient One. These ghosts can not only cause great interference to the mind, but also entangle the enemy in physical form, bringing powerful physical restraints.

The death ghosts quickly surrounded Ancient One, trying to corrode his mind and bind his limbs. Ancient One was entangled by the ghosts, and a powerful spiritual light burst out of his eyes, instantly shattering all the ghosts. He quickly formed seals with his hands, whispered a spell, and then shouted angrily: "Stop!" The power of time condensed in his hands, and the surrounding space solidified instantly, and the entire battlefield seemed to be paused.

Thanos's movements paused for a moment, but then a strong aura of dominance burst out from him, and the breath of death surged, instantly breaking the ancient one's time freezing technique. He sneered, swung his sickle, and said in a low voice: "Death Realm, Styx Soul Lock!"

As his voice fell, the darkness in the realm of death began to surge violently, like chains rising from the Styx, quickly wrapping around Ancient One. Each chain exuded a strong breath of death, as if to completely lock up Ancient One's soul.

Ancient One reacted quickly, his eyes flashing with wisdom, and his hands once again condensed the power of time and mind. He moved quickly, avoiding most of the chains, and at the same time, his figure flashed and appeared behind Thanos. He said calmly: "You control death, but destiny may not be in your hands."

Ancient One attacked fiercely, with both palms out, and powerful time magic and mental energy burst out instantly, hitting Thanos' back. This attack directly penetrated Thanos' defense and knocked him back several steps. Although Thanos did not fall, he clearly felt the threat of Ancient One's power.

Thanos was repelled by Ancient One's powerful attack. After stabilizing his body, a trace of blood oozed from the corner of his mouth. He then spat out a mouthful of blood, with a hint of cold cruelty in his eyes. He slowly turned around and stared at Ancient One, with disdain and threat in his tone: "Since you have obtained something that does not belong to you, let me take it back."

After saying this, Thanos' body began to emit a powerful aura. The power of death spread rapidly around him, and darkness surged like a tide, as if it could swallow everything. However, this breath of death was also mixed with another power that the Ancient One was most familiar with - the energy of Dormammu's dark dimension. The chaotic and oppressive dark power gradually strengthened in Thanos, as if he had reached some kind of evil contract with the depths of the dark dimension.

Gu Yi's eyes narrowed slightly, and then he showed a contemptuous smile, with a provocative tone: "The breath of Dormammu? It seems that you have fallen into the control of the dark dimension. It's interesting that my 'old friend' is willing to work with you."

The energy wrapped around Thanos' body gradually became stronger, and the breath of death intertwined with the power of the dark dimension, wrapping his entire body in a deep darkness. His eyes flashed a cold light in the darkness, like a demon from hell. Thanos' muscles swelled under the pressure of this power, and his skin glowed with a dark purple luster. The death sickle also continued to increase with his strength, and the runes on the blade flashed a dark light, as if absorbing all the vitality around him.

At this moment, Thanos was no longer just a symbol of death, but a terrifying existence that merged with the power of the dark dimension. His aura was deep and oppressive, and the air around him seemed to have stopped flowing under his pressure.

Thanos looked at Ancient One coldly, with a sneer on his lips, his tone full of absolute confidence and sarcasm: "Fallen? You really overestimate your moral judgment. I just chose the most effective power. No matter where it comes from, as long as it can help me achieve my goal, it is my weapon. Dormammu? His dark power is just a part of my control. I will not become a puppet like those stupid followers. I am Thanos, I control death, I control darkness, and even your so-called destiny will tremble in my hands."

As he spoke, the dark energy around him became stronger, as if the darkness of the entire universe was gathering in his body. Thanos slowly raised his death scythe, and the blade flashed with evil light from the dark dimension. His voice was low and threatening: "Fallen? No, I am sublimating, surpassing you self-righteous guardians. I will become the only master of this universe, and any force, any obstacle, will succumb to me."