The battle between Shingen and Watcher 13 was like the heavens splitting apart, the battlefield engulfed in chaotic surges of violent energy. With a slight lift of Watcher 13's fingers, enormous spectral sigils materialized in the air, emanating an eerie radiance and an overwhelming aura that bore down upon Shingen.
Shingen's gaze sharpened as he moved like lightning, evading the sigils' relentless assault. His movements cracked the ground beneath him, leaving deep fissures in his wake. With a roar, he unleashed a brilliant light from his weapon, colliding head-on with the oppressive force of Watcher 13. Each clash of energy was like a thunderous roar from the heavens, deafening and scattering debris like torrential rain.
"Brute force alone is futile!" Watcher 13 sneered, waving his hands as the sigils transformed into dozens of chain-like beams of light, surging toward Shingen from all directions.
Shingen frowned and burst forth with a surge of energy, shattering several chains, but more swiftly followed, binding him tightly. He roared in fury as the ground beneath him collapsed with a thunderous crash, the rubble flying from the sheer force of his struggle. Yet the chains clung to him like a relentless curse.
"It seems you're truly as weak as I expected." Watcher 13 observed Shingen's struggle with a cold expression, his tone dripping with mockery.
Panting heavily, Shingen's eyes burned with unyielding resolve. Around him, an energy field of interwoven blue and black began to surge, causing the air itself to tremble under its intensity. "Weak? The only weak one here is you," he muttered, his voice low and fierce.
As his words fell, a sudden explosion of energy erupted from his body. A thunderous roar reverberated through the heavens and earth as the chains shattered into countless fragments of light under the force of his power. Watcher 13's eyes widened in shock; he had not anticipated that Shingen could break free so quickly.
"Your life ends here, Watcher 13!" Shingen bellowed, charging at his foe with overwhelming ferocity. The aftershocks of their battle reverberated outward, collapsing ruins and turning the area into a chaotic wasteland.
Shingen's ethereal blade cleaved through the air, its icy aura suffocating. Wherever the blade moved, the world seemed to be engulfed in a frigid blue light. Despite the seemingly effortless fluidity of his movements, they carried an immense sense of impending doom. With a deft twist of his wrist, Shingen summoned a massive diamond-shaped construct of black and blue energy, blazing with intense flames. It hovered like a grim gateway, devouring all surrounding light and plunging the world into a shadowy gloom.
"Rend the Heavens: Storm's Execution!"
His deep, resonant voice thundered like the roar of an earthquake, each word laden with destructive intent. As his voice echoed, the diamond construct swelled before compressing to its utmost limit, its fiery core blazing with an almost blinding intensity.
The construct's center flared with a burst of blinding blue-white light, resembling the split-second brilliance of lightning striking the earth.
Shingen's eyes locked onto his opponent as he drove his ethereal blade straight into the diamond's core. In an instant, space itself seemed to warp and tear under an invisible force, releasing an earsplitting screech. Black-blue flames erupted from the construct, unleashing a devastating shockwave that engulfed the surroundings. The very air itself seemed to ignite, its searing chill piercing into the depths of one's soul.
Around the diamond construct, the compressed air fractured like glass, creating a web of fissures in the space itself. The cracks emitted a harsh, grating sound as if the world itself could not withstand the immense pressure.
Watcher 13 clutched his chest as a sharp pain struck him; the sword's power seemed to pierce directly into his soul's core. His expression twisted in shock, and with a desperate motion, he crossed his arms over his chest and chanted an incantation. A crimson sigil formed over his heart, serving as a protective seal.
But Shingen was far from finished. Tightening his grip on the blade, he pressed forward with unrelenting determination. The blazing diamond gate expanded like a devouring beast, gradually consuming the barrier of crimson sigils protecting Watcher 13.
"You… you can attack internal organs across a distance?!" Watcher 13 hissed, his voice trembling with both anger and disbelief. Beads of cold sweat formed on his forehead as he reinforced the seal over his heart. Yet no matter how much energy he poured into it, he couldn't close the tiny fissures left by Shingen's attack. From those cracks, tendrils of blue flames slithered inward, burning relentlessly at his soul's core.
Shingen, too, was reaching his limits. His arms trembled under the strain of channeling such immense power, but the fire in his eyes burned undiminished. "You can delay the inevitable, but you can't escape it! This is your end!" he roared, driving his blade deeper into the blazing diamond construct.
The sheer force of his onslaught drove Watcher 13 back, the ground beneath him fracturing with each step. Struggling to maintain his composure, Watcher 13 gritted his teeth, throwing every ounce of his strength into reinforcing his defenses. The battle had become a deadly standoff, with one side pouring all their power into the offensive, and the other desperately clinging to survival.
The air around them grew suffused with despair, the battlefield resonating with the clash of indomitable wills. The intertwining hues of blue flames and crimson sigils cast a hellish glow over the scene, where neither side could afford to falter.