The Power of Red-Clad Uncle and Blue-Clad Uncle

The shockwave from the explosion swept across the entire plaza, shattering the glass curtain wall on the ground floor of the Arbitrator Tower. Flames erupted from the collapsed entrance, and the howls of Extremis Soldier echoed in the night like a pack of hellhounds.

Steve Rogers raised his Vibranium Shield, taking the brunt of a molten punch. The intense impact left two charred gashes on the ground from the soles of his boots. He used the momentum to step back, letting out a low growl:

"Pietro!"

A silver afterimage flashed across the battlefield. Quicksilver moved through the enemy ranks at supersonic speed, his high-voltage stun baton precisely piercing the Extremis Soldier's spinal nerve node. The struck enemy's body convulsed violently, his lava-like skin briefly dimming, but just two seconds later, the scorching energy surged again, and the wound healed rapidly.

"It's no use!" Pietro flashed back to Steve's side, his brow furrowed. "Their healing rate is faster than before!"

Wanda manipulated crimson Chaos Magic with both hands, forming an energy barrier in the center of the plaza, temporarily holding back the charging Extremis Soldier. Fine beads of sweat appeared on her forehead as she gritted her teeth and said, "There are too many of them... and they're constantly evolving!"

Steve took a deep breath and quickly adjusted his tactics. "Pietro, keep disrupting them, don't let them break through in one go! Wanda, maintain the barrier, buy me time!"

He hurled his shield, the Vibranium disc tracing a sharp arc through the air, piercing the chests of three Extremis Soldier before bouncing back into his hand. However, the enemies continued to pour in; their skin had evolved magic resistance, and cracks began to appear in Wanda's barrier.

"Damn it..." Steve gripped his shield, bracing himself for the next wave of attack.

Just then--

Boom

A deafening sonic boom echoed above the building, and a golden-red meteor streaked across the night sky. Tony Stark's Photon Wings trailed a dazzling particle trajectory behind him as he swooped down like a cannonball, the exhaust flames of his armor's thrusters leaving a scorching afterimage in the air.

"Captain! Looks like you need a party to liven things up!" Tony's voice crackled through the comms, as the miniature missile bays on his armor's shoulders popped open, locking onto the enemy ranks with six high-explosive Negasonic Teenage Warhead.

--Whoosh! Whoosh! Whoosh!

The missile accurately struck the area where the Extremis Soldier were most concentrated, and the Kakkō instantly engulfed the center of the square. However, shockingly, the Extremis Soldier who were bombed actually withstood the blast. Except for the unfortunate one who was blown to pieces, the other Extremis Soldier engulfed by the blast began to absorb the flames generated by the explosion!

"Tony! Their virus is adapting to your weapons!" Steve yelled.

Tony's visor scan data kept updating rapidly, and JARVIS's voice rang out. "Sir, the Extremis Virus is evolving, and the effectiveness of conventional weapons is decreasing."

"Then let's try this!" Tony's lightsabers popped out from both hands, the blue-white energy blades humming in the air.

The armor's energy core instantly overloaded, the brightness of the Photon Wings surged, and Tony charged into the enemy ranks like a beam of light, his lightsaber sweeping across and slicing two Extremis Soldiers in half at the waist. But this time, he deliberately made the blade vibrate at a high frequency at the cut, the continuous burning and vibration of the high-temperature energy preventing their regeneration.

"Effective!" Pietro's eyes lit up, and he transformed into a silver afterimage once more, coordinating with Tony's attack to specifically target and destroy the enemy's joints and nerve nodes.

Wanda also adjusted her strategy; instead of using her crimson magic for defense, it transformed into countless tiny energy threads that wrapped around the Extremis Soldier's limbs, forcibly slowing their movements.

The tide of battle has finally begun to turn!

The alloy walls of the safe house remained unmoved by the aftershocks of the explosion, and the emergency lights on the ceiling steadily emitted a soft blue glow.

A holographic projector projected a clear 3D image in the center of the room, displaying the intense battle outside the Arbitrator Tower in real time to everyone.

Pepper braced her hands on the control panel. In the holographic image, Tony's armor was locked in combat with three Extremis Soldiers, its blue, white, and black armor covered in scorch marks. "Happy, can you get in touch with Tony?" Her voice was tense, her gaze never leaving the projection.

Happy wiped the sweat from his brow, his fingers rapidly tapping on the communication panel: "The signal is intermittent, but I can still make calls— Tony! How's it going on your end?"

In the projection, Tony dodged a Rock Fist with a sidestep, his palm strike shattering the enemy's skull. "Honey, I suggest you focus on my cool fighting stance, not those ugly—" The screen suddenly shook violently, and Tony was thrown back by the shockwave. "Damn it! JARVIS, how much shield energy is left?"

"Tony... Chen Tian... you guys have to be alright..." Her voice trembled slightly.

Behind her, 2B stood quietly, holding a Virtuous Contract katana in her hand.

"Ms. Pepper, there's no need to worry," 2B's voice was gentle. "Master won't let anything happen here."

Pepper turned to look at her, forcing a smile, "I know Chen Tian is strong, but this time the enemy..."

2B shook her head slightly, a faint smile appearing on her face. "Ms. Pepper, you seem to have forgotten about Master's uncles."

2B pointed to a spot on the holographic projection, "They are very strong."

As soon as 2B finished speaking, the entire battlefield suddenly fell into an eerie stillness. The flames of the explosion froze in mid-air, bullets hovered, and even the whistling wind disappeared.

Vergil's voice then rang out.

"Dimension Slash".

The next second, hundreds of silver-white blades intertwined in the square, each one piercing precisely through the body of the Extremis Soldier.

Vergil's figure appeared in the flash of the blade, Yamato gracefully returned to its sheath. With a 'click,' all the enemies struck shattered into neat Cosmic Cube.

"Brother, you're too greedy!" Dante's voice came from high above. With Dante's shout, the Rebellion, wreathed in red flames, crashed into the enemy ranks, and the shockwave instantly cleared an area with a radius of twenty meters.

He casually tossed out his two guns, the bullets tracing golden paths through the air, completely vaporizing the lava blocks that were trying to reform.

The entire battlefield suddenly fell into an eerie sense of division—on one side, Dante and Vergil's fluid and graceful art of killing; on the other, the Arbitrators' almost leisurely spectatorship.

"Dimension Slash - Absolute".

As soon as Vergil finished speaking, Tony saw the seven Extremis Soldier suddenly freeze in place.

Their bodies were covered in fine blue meshes, and the next second they shattered into neat Cosmic Cube like jelly sliced by an invisible blade. The fragments remained suspended in the air, maintaining the posture they had just taken when they were struck.

"JARVIS, analyze what the underlying principle is."

"Sir, according to the scan, those Cosmic Cube are undergoing spatial layer cutting. Simply put—"

"Stop, I've changed my mind." Tony lifted his visor and pulled a packet of dried blueberries from a hidden compartment in his armor. "Let Banner deal with this kind of extraordinary physical phenomenon."

Not far away, Dante's Rebellion blazed with a ghostly blue flame. His eyes sharpened, and the blade traced a perfect arc, cleaving three Extremis Soldiers in two at the waist. Unlike his usual playful antics, his movements were precise and deadly at this moment.

"Brother, the left side is yours." He said in a deep voice, while his right hand fired continuously with his Ebony. Each bullet accurately hit the enemy's nerve nodes. What was even more terrifying was that these bullets carried a strange destructive force, destroying the cells in the body of the Extremis Soldier.

"This is just..." Pietro stood next to Steve, still holding the stun gun he hadn't had time to throw, "What the hell were we fighting?"

Wanda dispelled the Chaos Magic and was recovering her strength. "I suddenly realize how unnecessary my earlier tension was," she said, watching Dante's fluid and effortless fighting style. "The Chen Tian family are all freaks..."

As if remembering something, Wanda's face flushed red, and her legs tightened slightly.

With the arrival of these two powerful figures, the Extremis Soldier on the battlefield were like lambs to the slaughter, bound in a tortoise shell. Under the rampage of these two monsters, they had no power to resist, and the battlefield was quickly wiped out.

In the square where the smoke of battle had not yet dissipated, Vergil's figure disappeared into the battlefield. The 'click' of Yamato returning to its sheath seemed to be some kind of signal, and all the Cosmic Cube fragments suspended in the air simultaneously turned into dust, shimmering with tiny blue light under the moonlight.

"That's... over?" Pietro looked at the mess on the ground. He knew that Chen Tian's two uncles were very strong, but he had never met them when he was a child.

Tony brushed the crumbs from his blueberry snack. "JARVIS, battlefield scan."

"No vital signs in the area, Sir." The AI paused for half a second, then added, "Suggested addition: Besides our side."

Dante had appeared beside Tony without anyone noticing, casually slung the Rebellion over his shoulder. "How about it, rich guy? How much for a strawberry sundae?" He then familiarly draped his other hand over Tony's shoulder.

"Red-Clad Uncle, your aloofness clashes completely with that of Blue-Clad Uncle," Tony slapped Dante's hand away, but couldn't help but curl his lips into a smile. "Looks like someone's converted all their appearance fees into desserts."

"Hey!" Dante pretended to be injured, clutching his chest. "I risked getting fat to come and save the day!"

Pepper strode out from the Arbitrators's office on the first floor. She first carefully inspected Tony's armor before turning to Dante: "I've already ordered the pepperoni pizza that they raved about last time."

Dante's eyes lit up instantly. "Deal!" He turned and shouted into the Void, "Brother! Bonus food!"

Vergil's figure seemed to freeze in the moonlight, his blue coat spotless. "Naive." But as he approached Pepper, he nodded slightly. "Black tea, thank you."

Steve slung his shield back over his shoulder, looked at the Cosmic Cube fragments shimmering with blue light scattered on the ground, and shook his head with a wry smile, "Looks like I missed a lot of great entertainment since I didn't attend your family party last time."

Tony was about to reply when he suddenly froze. "Wait!" He slapped his forehead. "JARVIS, connect Chen Tian to the communication immediately!"

The holographic projection unfolded on the armor's arm, and Chen Tian's image appeared.

At this moment, he stood amidst a sea of fire. If one looked closely, one could see the ruins of the villa; he was in the midst of the villa's rubble.

"Tony, did you guys resolve things on your end?"

Tony stared wide-eyed at Chen Tian's surroundings: the burning ruins of the villa, molten lava dripping from the twisted metal frame, and ashes flying everywhere. Fragments of once priceless works of art were now swirling in the air with the heatwave.

"Chen Tian! What's the situation on your end?" Tony shouted.

"What's going on?" Chen Tian spread his hands, gesturing to his surroundings. "Look, that's it."

Chen Tian bent down and picked up a charred piece of metal—the wreckage of Tony's favorite coffee machine. "Don't worry," he gently brushed the dust off the fragment, "Your treasured bottle of Black Pearl is still here."

"That's not the point!" Tony interrupted Chen Tian loudly. "I'm talking about the armor! My 'family party'!"

Chen Tian shifted the camera's focus, revealing that the former underground laboratory was now just a huge empty space. Inside, Tony had been building nearly thirty suits of armor during the three years Chen Tian had been missing, but they were now covered in lava and slowly melting away.

"Damn it!" Tony stomped his foot in anger, but then seemed to remember something. "Wait, Chen Tian! This lava isn't ordinary stuff! I have several suits of armor that have undergone special high-temperature resistance testing. They can be thrown directly into a volcano and soaked for a whole day without melting!"

The camera then pans back to Chen Tian, who now looks serious. "Yes, Tony, your Mark-2 Devil Edition is gone too."

"What?!" Tony's voice was almost shrill. Everyone stared at Tony in astonishment; they rarely saw Tony so out of control.

Tony's pupils contracted sharply, and his respiratory system under his visor suddenly emitted a rapid alarm.

"Sir, your heart rate has exceeded 140," JARVIS reminded him at the opportune moment.

Reminded by JARVIS, Tony snapped out of his daze, took a few deep breaths, and looked at Chen Tian's image. "Kid, is it really gone, or was it blown up?"

Chen Tian was also very serious. "I've searched the entire area. You know, it was made of Diablo Scales. I can feel it; it's definitely gone."

Tony took another deep breath, about to say something, when Chen Tian interrupted him, "Tony, wait for me on the top floor of the Arbitrator Tower. I just found some things to show you."

After hearing what Chen Tian said, Tony stopped asking questions, turned off the communication, and looked at the group of people who were looking at Tony with concern.

Tony shrugged and said, "You heard what the Arbitrators leader said. Let's go, we'll go to the top floor."

Ignoring everyone's reactions, he piloted his armor and flew towards the top floor.

Steve and Pietro exchanged glances. Vergil entered the building first, Dante, with the Rebellion slung over his back, followed behind Vergil, whistling and holding his head in his hands.

Pepper asked 2B, who had just come out, with concern, "2B, do you know what's going on?"

2B didn't answer, just shook her head, and then led Wanda into the building.

On the ruins of the Malibu Villa, after finishing his communication with Tony, Chen Tian pressed a few buttons on his wristwatch.

"The Adjudicator: Eliminate Aldridge Killian and his AIM, capture the fake Mandarin alive, obtain all data on the Extremis Virus, and in the Red Room, investigate Maya Hansen's true identity."

After saying those words to the watch, he took it off and threw it into a pool of still-flowing lava. He waited quietly until the watch had completely melted before disappearing from the spot.

In the ruins of the Malibu Villa, 1000 meters away, Maya staggered out of the burning bushes. She was completely naked, her hair burned off, and her left arm completely charred, with charred debris constantly peeling off with her movements.

The exposed muscle tissue twisted under the high temperature, like a wax figure eroded by lava, but the Extremis Virus was still frantically repairing her body—each cell regeneration was accompanied by an intense burning sensation, as if countless tiny fire snakes were swimming in her blood vessels.

She gasped for breath, using her only remaining right hand to support herself against a charred tree trunk, her nails digging deep into the bark. Her vision was blurred by the intense heat, but the towering Kakkō of the distant villa still stung her pupils.

"Bucky Barnes, you damn bastard," she cursed hoarsely, her voice strained from her burnt vocal cords like that of a vengeful ghost.

Maya looked down at her mangled body. The Extremis Virus was still operating, but its efficiency had clearly decreased, perhaps due to the influence of demonic forces.

"Bucky Barnes! You'll die with Tony! You'll be dead, not even ashes left!" Maya cursed viciously before disappearing into the darkness.

(Here's an explanation of the Extremis Virus's evolution: in the original setting, the Extremis Virus was capable of evolution, with two possible paths: natural evolution and scientific evolution.)

(Viruses essentially acquire extraordinary abilities by altering the host's genetic structure. Similar to viruses in nature, they may achieve self-evolution through gene mutation or horizontal gene transfer.)

(In the Marvel universe, the Extremis Virus has been modified multiple times, suggesting that its evolution depends not only on natural mechanisms but also on the iteration of technological means.)

(Information on Extremis Virus comes from Marvel Wikipedia)