Risebelle felt an overwhelming surge of anger coursing through her being, a deep well of anger that had built up over time. She shouted, "Project ZAB Transformation!"

  The arena was bathed in a brilliant, eerie blue light. Risebelle's blue hair started to glow with immense energy, and her entire body was enveloped in a cocoon of magical power.

  The cocoon shattered and Risebelle emerged from it with an entirely different appearance. She now wore a small blue jacket that covered her chest but was semi-open. Her skirt, too, was blue with purple accents. She now had earring that were like poison-blue crystals that dangled from her ears.

  Weapons materialized in her hands. One was a medium-sized gun with blue poison energy emanating from it. It used to be her medium-sized cannon, now it was enhanced. The other weapon was a deadly blue acidic sword that glistened with malevolent intent.

  Risebelle's eyes took on a brilliant blue hue. Her body grew, transitioning from its childlike appearance into that of a teenagers.

  [System Message]

  Lifeforce: 300%

  Magic level: 400%

  Roselle shouted, "Project Mage Transformation!"

  A purple light enveloped Roselle, casting a radiant glow throughout the arena. Roselle's hair, once flowing yellow now took on a regal shade of purple, crackling with purple lightning. Her outfit underwent a stunning metamorphosis, mirroring Risebelle's in many ways. She now wore a small purple jacket that partially covered her chest. Her skirt was also a deep purple.

  Earrings in the shape of purple lightning bolts dangled from her ears. The massive cannon she had been wielding transformed into a medium-sized version with purple lightning energy pulsating from its core.

  But what set Roselle's transformation apart was her unique black and purple hat that adorned her head.

  [System Message]

  Lifeforce: 300%

  Magic level: 400%

  With her transformation complete, Roselle stood ready to face her sister, Risebelle.

  Risebelle channeled her anger into her cannon. She shouted, "Aqua Surge Barrage!"

  Her blue energy flared, and she released a rapid, relentless barrage of high-velocity water and acid projectiles. Each shot was a guided missile, making it nearly impossible to escape. The acidic properties of the projectiles devoured whatever they touched. Each impact ate away at Roselle's defenses, causing her to grit her teeth.

  Roselle channeled her lightning powers into her abilities. Her lightning surged to unparalleled levels of ferocity.

  “Lightning Whip!”

  Roselle created a formidable violet whip. Roselle's Lightning Whip lashed out in retaliation and skillfully deflected the remaining of Risebelle’s acid barrage.

  Simultaneously, Risebelle decided to de-form her cannon at the same time as Roselle. The two sisters closed the distance between them, and in a flash of motion, they clashed their Toxic Blades with a resounding clash. The acidic sword in Risebelle's hand met the energy-infused blade of Roselle,.

  Their blades crackled with energy, and for a moment, the two sisters were locked in a fierce struggle. Roselle and Risebelle gritted their teeth’s. With a synchronized step back, they prepared for the next exchange.

  In a lightning-fast flurry of motion, they launched a series of slashes at each other. Risebelle suddenly lunged forward, her sword aiming for Roselle’s torso. Roselle deftly sidestepped, but Risebelle was quick to follow up, her blade slicing horizontally in a wide arc. Roselle ducked under the swing, narrowly avoiding the acidic edge.

  Roselle, seeing an opening, executed a swift counterattack. She twisted her body, channeling lightning through her blade to increase its cutting power. Her strike was aimed directly at Risebelle’s shoulder. Risebelle gritted her teeth and raised her sword to block, but the force of Roselle’s enhanced attack drove her back, forcing her to retreat a step.

  Risebelle rallied, using her agility to reposition herself. She spun and aimed a low, sweeping strike at Roselle’s legs. Roselle barely managed to leap over the attack, landing gracefully and immediately retaliating with a powerful diagonal slash.

  Roselle smirked. Risebelle’s curiosity was peaked from that smirk. Shetried to decipher the shift in Roselle’s demeanor. Roselle focused intently. She unleashed her purple lightning around her body.

  She said to herself, "I’ve only used this form to a fraction of its potential before. With 400% as my base, pushing it to 600%... it’s risky, but it’s my only shot to break through."

  The arena trembled with the intense magical output emanating from Roselle. Her purple lightning now transformed into a vibrant greenish hue ferociously. The crowd gasped in awe at the color of Roselle's energy shifting.

  Risebelle’s eyes widened in shock. “What the—?”

  This tale has been pilfered from Royal Road. If found on Amazon, kindly file a report.

  Before she could fully process the transformation, Roselle closed the distance with a burst of speed. Her strikes came in a rapid flurry. Each one was charged with her amplified lightning. The greenish arcs of energy lashed out, leaving trails of searing light while clashing against Risebelle's defenses.

  Risebelle tried to keep up and raised blade to parry Roselle’s relentless assault. But the sheer power behind each of Roselle’s strikes was overwhelming. Risebelle found herself struggling to defend against the barrage of green lightning-infused attacks.

  “That’s insane!” Risebelle shouted, gritting her teeth against the onslaught. “Where did you get this power?”

  Roselle didn’t answer. Her focus was entirely on breaking through Risebelle’s defenses.

  Risebelle’s strikes came fast and furious, but Roselle wasn’t dodging. Instead, she was absorbing the blows with a relentless, almost reckless resolve. Risebelle’s keen eyes tracked the blurred movement of her sister. She struggled to keep up with the overwhelming speed and force of the green lightning strikes.

  Roselle’s body was a storm of energy. Despite Risebelle’s best efforts to defend herself, she took several hits. Each one left a mark on her.

  One particularly powerful slash from Risebelle forced Roselle back, causing her to stumble slightly. “Damn it,” Risebelle muttered, wincing from the pain of the strikes she’d taken.she muttered to herself in a strain, "She's not dodging... but she knows… I can’t keep up with that speed for long…... But maybe... I can trip her up..."

  Risebelle, strategizing under pressure, began using her remaining magic to create small water puddles scattered across the arena. Roselle, despite her fierce speed, barely managed to avoid falling from one of the puddles. She let out a yelp but tried to maintain her footing. Risebelle smirked at the struggle.

  “Not this time,” Roselle shouted. With a swift motion, she transitioned her stumble into a handstand, flipping herself in the air with impressive agility.

  From this new position, Roselle launched herself toward Risebelle. Risebelle’s smirk turned into a knowing grin. “Exactly what I was hoping for.”

  As Roselle descended, she formed several small spheres of water, propelling them at high velocity toward her sister. The water spheres bombarded Risebelle with relentless precision.

  In the midst of this, Roselle’s greenish lightning flared brighter, then suddenly shifted back to its original purple hue while closing in on Risebelle.

  With a powerful slash, Roselle’s blade met Risebelle’s defenses. The force of the strike sent Risebelle reeling, and Roselle landed from her attack, but she looked exhausted.

  Risebelle’s breathing was ragged and her body ached. She glanced at Roselle with a triumphant grin. “I’ve actually worn her down,” she thought to herself. “She’s been pushing her magic to the absolute limit. I can see the strain on her face. She made a bold move, coming at me with everything she’s got, but this is the opening I needed. If I can just press my advantage, I might be able to finish this.”

  Roselle look at Risebelle confidently despite her fatigue and thought, ‘I’ve pushed her to her limit, but she’s still standing. I need to stay focused. If I let my guard down even for a second, she’ll take advantage of it…’

  Roselle lowered her eyes slightly. ‘I’ve used up so much energy, and my attacks have taken their toll on her. I need to find a way to finish this quickly before my strength gives out.’

  With a deep breath, Roselle extended her arm toward the sky. The arena's atmosphere began to change as dark, ominous clouds gathered above, shrouding the battlefield in darkness.

  “Thunderstorm Requiem!”

  Roselle summoned a massive thunderstorm. The Lightning bolts crackled and surged within the storm. The lightning bolts erupted from the storm. Each one was one guided with down withtin the vicinity of Risebelle creating explosions on impact that engulfed the arena in a chaotic storm of electricity.

  Risebelle knew she had to act quickly. She focused her magic, using her Acid Aqua barrier technique to form a protective barrier of swirling water and acid around her. The barrier crackled and sizzled against the lightning bolts. Risebelle gritted her teeth. She struggled to maintain her defensive stance against Roselle's devastating attack.

  While the violent storm of Roselle's Thunderstorm Requiem clashed with Risebelle's defense, a rush of memories flooded Risebelle's mind. She found herself drifting back to the days when she first met Roselle in Dr. Kintovar's lab.

  Back then, Risebelle was harboring a deep hatred for the world. She had shown little interest when Kintovar introduced Roselle as her sister. Risebelle's initial interactions with Roselle were cold.

  Risebelle had been tasked with training Roselle reluctantly. She remembered a specific training session where she had shown Roselle the ropes in battle. Her eyes were filled with disappointment at observed Roselle's performance. She had offered a piece of advice, words that had never left her mind: "You see, Roselle, battles require strategy and adaptability. It's not just about firepower; it's about using your environment and understanding your opponent."

  Now, as Risebelle stood in the middle of the electrifying storm, she knew Roselle had taken those lessons to heart.

  The immense power of Roselle's Thunderstorm Requiem began to take its toll on Risebelle. She screamed out in pain. The surges of electricity and acid magic surged through her and a deafening explosion filled the air.

  When the dust settled, Risebelle lay on the ground. She gasped for breath. Her body was covered in burns and her clothing in tatters. The pain she felt was excruciating, and she was appeared to be knocked out.

  Outside the Grand Arena, a red countdown meter appeared on the board, rapidly counting down from 60. The arena fell into a tense silence.

  The Tournament announcer shouted through the microphone, "Alright, listen up, folks! Here’s the deal—if that countdown hits zero and our girl Risebelle isn’t back on her feet, Roselle’s gonna be declared the winner!”

  "That was quite an attack,” Kintovar murmured to herself, watching the countdown with a keen eye. "Roselle's transformation looks different from that time."

  Juliana questioned, "You mean the time when Roselle fought against Mystimona on the beach at the Mystical Island?"

  Kintovar raised an eyebrow. "It's scary how much you know, despite the fact that you weren’t even there, Grandmother…"

  Runebelle’s face tried to form a smile, but it only managed to produce a half-hearted one. With the timer counting down, reaching 30 seconds remaining, the pressure in the arena continued to mount.

  Risebelle’s eyes snapped open. She managed to get back on her feet with a groan. She summoned her cannon and used it for support. She quickly checked her lifeforce.

  [System message]

  Lifeforce: 50%

  With a smile, albeit a weary one, she said, "Roselle, you've grown truly impressive. I always said you'd make for a good leader someday. Right now, I have no doubt that either of us could lead our group."

  Risebelle's thoughts took a look at her hand and muttered softly, "Without you, I would..." But she stopped herself, shaking her head to clear her thoughts.

  Roselle saw the fleeting look on Risebelle’s face. A flicker of confusion crossed her face. “What’s she thinking?” Roselle muttered to herself.

  Risebelle took a deep breath, and then said, “Alright, sis… you’ve shown me your best. Now it’s my turn.”

  Risebelle could feel the energy within her surging like a torrent. Her eyes glared upon her sister, Roselle.

  Roselle gave a curious look. "Risebelle, what's that look in your eyes? What are you planning?"

  Risebelle’s Shouted loudly, "Roselle, it's time to finish this. I'm going to drown you in my cascade!"