The tight strike clashed with Lexiconus’ shoulder hard and cut through his robes, and singed his leathery skin. He flailed and shrieked with agony as he fell, and dug his saberstaff into the ground. Flashes of emerald and orange scattered across the ancient rock as the lightsaber stabbed through the platform, while Lexiconus’ clumsy finger pressed the trigger.
Fear and shock washed over his mind, sure this would be his last breath. Lexiconus pushed to his feet and crawled away from the raven-haired woman in a desperate act of survival. Her expression remained focused and unmoving as her cold, dead eyes stared down at the Quarren. She was ready to gut him without a flinching thought, Lexiconus wasn’t phased by glares anymore. He had seen worse in the most sinister of men, and indeed from the same members who shared rooms with her in Excidium.
“Wait!” he shouted as he raised a pleading hand. “Give me time to ready myself again! Please!” Stumbling further backward, he felt rusted nails scrape the palms of his hands. Rope strained and tightened their chords as the weight of the Quarren pressed on them. Lexiconus peered up to look for something he could grab, and found the bridge’s bannister, he tugged himself onto his feet. With his saberstaff firmly in his dominant hand, his left foot led the backstep. He was ready again.
Rasilvenaira didn’t break focus as her lightsaber pounded away at Lexiconus’, shoving his saberstaff away with each blow. She was fast and overwhelming as her feet balanced effortlessly on the rickety and broken wood. Lexiconus stumbled and caught his boots in the gaps. The Massassi had clearly never returned to renovate this area because Lexiconus noticed that the ropes began to untie and snap from the weight. Rasilvenaira dominated the fight with her arcs of silver, her blade clashed against the Quarren’s basic and trivial blocks.
Lexiconus blocked and shoved the attacks back to the best of his ability but the Battlelord overwhelmed his strength and forced his lightsaber to slice the bridge apart. Rasilvenaira feared her demise as her eyes watched the wood buckle and fall from her dancing feet. To save her own life and his, she shoved her boot into Lexiconus’ chest and pushed him onto the second stone circle. The Quarren tumbled and rolled from his back and onto his stomach, his face squashed into the moss-layered stone. His saberstaff tumbled from his hand and rolled to the arena’s edge.
“Oh great,” he coughed. “I die with my last meal being mushrooms.”
Like a bird of paradise in the jungle, the Battlelord spun and glided over his body, she landed softly behind him. She was safe in the centre of this new arena. As Rasilvenaira deactivated her lightsaber and unhooked Arashi-Kumori, she cocked her head to the side and let out a small chuckle. The Battlelord approached the Quarren's tired body and watched him.
“I thought you were getting up. The Force knows I could do with more grovelling men. But please, not while we’re fighting?” She poked him with the tip of her blade and he jolted at the sharp edge, mumbling something about soft-skinned Humans. Lexiconus forced himself from his arms and up onto his feet, then recalled the saberstaff and ignited a single blade. The snap-hiss of the blade frightened a flock of flightless rainbow birds, which scurried into the bush.
“You are good at combat,” he nodded with appreciation, his smile growing. “But how skilled are you in the Force?”
When he shut off his saberstaff and planted it back on the magnetic pad, he extended his hands out and stepped back, towards the edge of the arena. As his eyes focused on her, Rasilvenaira also extended a hand and glared. His hands shook and wobbled, concentrating to grip her body, or at least lift it. The training he remembered from his master - to give into the truth and life around you. To feed on the living and thriving wilderness, and to let go of emotion. He let his emotions come to him, and fill his intentions to lift the Battlelord. Lexiconus strained and grunted as sweat dripped from his brow. Only her hooked lightsaber slowly lifted and wriggled in the air. He could sense her pleasure in this.
“Yes,” she spoke out which forced Lexiconus to look up at her. “I am skilled in the Force. I can make your greatest gift, into a trivial parlour trick.” She relaxed her arm and her face dropped into focus once more. Lexiconus grumbled at the thought of being compared to a court jester or thespian and grabbed his saberstaff again. He whipped the hilt and the emerald blade came to life. Rasilvenaira snatched her lightsaber from the hook and imitated him.
“Now taste mine!” she roared and stormed ahead, while her hand tossed Arashi-Kumori aside. Her off hand shot out and an aura of darkness consumed Lexiconus’ vision. The Quarren stumbled back and swung his blade around in an effort to protect himself, his boots kicked rubble off the edge of the ancient arena, into the ravine below. He slipped to his knees then his stomach was ripped by the scoured stone of the arena. The Quarren's poor balance cursed him. He caught the edge of the arena with his left hand, while his saberstaff dropped into the ravine. As if on instinct, Lexiconus extended his free hand and caught the weapon in mid-air.
“I can’t!” he groaned as the stone beneath his grip started to crumble. “Human, you can help me!”
Your biggest issue here, that cost you a point on Realism, is the lack of conflict. While you initiated it by swinging at him, there was no back and forth to be read, no actual combat. This is a common problem and I doubt you'll have issues with it in the future.
On Syntax, you had a few comma splices, example:
Mostly you need to be consistent. If you capitalize Quarren, you need to do the same to Human. Either both or neither.