Appius shook his head to regain composure and shook off the last of the influence his apprentice had attempted to inflict on his mind.
Impressive.
Appius couldn't help but smirk behind his visor. Trenkyp was improving faster than he expected and it reminded him a lot of himself. He was known as a Vizsla superstar, and the clan's first Knight. An honour he carried with him wherever he went, but now it seemed Trenkyp was going to reach Knighthood faster than he did. It was just a case of getting him there and making sure he was ready.
Still, he was the Master, and Trenkyp, the apprentice. The Kel Dor still had much to learn, and Appius would be damned if he wasn't to teach him everything he could until the end of his apprenticeship under him.
The moment his eyes locked with the Kel Dor's he saw the Defender racing towards him with newfound vigor, with his vibroblade in his left hand he attempted a vertical strike at the Sorcerer only for his intended target to sidestep the attack, the warning from the Force his Master received being more than enough for him to take relative action. The vibroblade clanged against the hard cave floor and Appius swung his lightsaber in a diagonal, haphazard and fast swing, severing the hilt from the weapon itself. The sudden action startled the young Padawan as he staggered back several paces to gain some distance and inspect the damage.
In the entire time he'd known Appius, throughout their missions together, their constant spars and training, never had he destroyed one of his weapons, the motion of which sent a chilling wave down the Kel Dor's spine.
"I'm disappointed, Trenkyp. Here we are in the Cave of Ilum. A place famous among Force Users of the galaxy for its rich supply of Kyber Crystals. A place respected and honoured by the Jedi Order, revered by them, and you're using a vibrosword?"
Appius tutted at his apprentice and his words sounded even more brittle and demeaning from the Voice Modulator inside his helmet. Nonetheless, what he said had the desired effect. Trenkyp glanced at the broken hilt in his left hand and threw it to the side as it echoed across the walls of the cave. The Wren Aedile pointed his emerald blade at him, the glow of which made him look ethereal against the glittering stones of the cave.
"And the other one."
Trenkyp didn't budge.
"Or do I have to destroy that one as well?"
Trenkyp hung his head in defeat and sighed heavily. He unsheathed his vibroblade in his left hand and was about to discard it like his other weapons hilt, until inspiration flashed through his mind. Calling upon the Force, he felt it fuel his muscles as he gripped the blade hard with his hand, spun around and threw it at his master as hard as he could.
If it wasn't for the Force warning the Mystic of the impending doom it would have cleaved the Sorcerer's head from his shoulders. Thankfully, he was able to sidestep and Appius swung his lightsaber once again, this time casually cutting the blade vertically across the centre. The Wren Aedile glanced behind him and watched the two pieces of the weapon slide and screech unceremoniously further into the cave behind them.
Sensing his Master's distraction, Trenkyp took full advantage and leapt at the Sorcerer. With both hands centred in the middle of the hilt, the Defender swung a deliberate attack at the Human. With aid from the Force, Appius received enough warning to defend himself and raised his lightsaber into a high guard. Blue collided with green and the sabers locked together, neither combatant separating from the other.
"That's more like it."
The Mystic’s voice perforated the sound of the sabers as he took advantage of his mastery of Niman to overwhelm his apprentice. In a series of flitting strikes he struck high or low, with strength or speed but never both at the same time, changing patterns with the flick of a wrist, moving from standard to reverse grip in a matter of moments like it was as easy as breathing. He was creative, deceptively so and the Padawan attempted to block, parry and struggled to decipher any typical pattern in Appius' movements. His Master was like a flowing river, changing directions with the tide and perfectly balanced whilst he did so and as a result, Trenkyp found himself struggling to keep up momentum or pace. After a horizontal strike the Sorcerer called upon the Force and used it to leap over the Defender.
Landing behind him, Appius extended his palm and a powerful gush of air swept the young Padawan, sending him spine first into a nearby glittering wall. He grunted in pain as dust covered him. His lightsaber rolled across the ground a few feet away from him.
"Come on, Trenkyp. You're better than this."
Even through the brittleness of the Voice Modulator, Trenkyp could hear his Master's encouragement. But even so, he struggled to think of a game plan of how to win. How was he supposed to beat him.He didn't even have a more advanced lightsaber form to fight him with! It all seemed hopeless.
"Don't listen to it."
His train of thought was interrupted by his Master's screeching voice.
"Excuse me?"
"I can sense your feelings. That little voice at the back of your mind telling you that you can't win? That its useless? Don't listen to it."
The Kel Dor clenched his fist and slammed it into the ground.
"How the hell am I supposed to win!? Every single time we fight, no matter where we are or what we do, you always seem to come out the victor or there's something completely out of my control. Everything I do is pointless. I'm not strong enough."
That was when his master interrupted him by using the Force to throw a small, loose stone at the Kel Dor's head. The bump startled him but wouldn't cause any more harm other than the slight bruise forming on his flesh.
"Are you done?"
Trenkyp didn't reply, instead, he simply rubbed his head where the pebble had hit him, and simply observed as Appius sheathed his lightsaber and slowly removed his helmet, tossing it aside and looking at his apprentice with fire in his eyes.
"You want to know why I keep beating you, Trenkyp? Why you can't win? It's not because I'm trained better, that I'm stronger than you or anything like that. No, the real reason is I have confidence in myself."
Trenkyp lowered his head.
"I've been through a lot. My father was killed on Mandalore when I was fifteen and I left the planet seeking refuge elsewhere, having to fight for my life everywhere I went until Vizsla showed up and saved me. In the last Great Jedi War, my Master Farrin and I were ambushed by Shikari Huntresses and I lost my left kidney in the ensuing fight. I left the way of the Jedi Order behind, unable to see the light in their way, I went in search of it on my own. I went from a man who had nothing to a man who founded a Battleteam and became an Aedile. Have I had my lows? Of course, but I've always fought back. Why? Because I have hope. Hope for the universe, hope for a better future, and I have hope for you, you could be a better man than I. Remember, Shili? Your idea saved our lives."
"We nearly burned down the Savannah."
"And? The fire stopped and we are still alive aren't we? So do me a favour, shut up, grab your lightsaber, and show me what you can do. Because I refuse to accept that this is the best you've got!"
Trenkyp stared into the deep blue eyes of his Master, the passion and fire in his eyes lit ignited something within him, burning in his centre. Trenkyp wandered the galaxy after leaving the Jedi Order himself when he was nineteen. He wandered around the galaxy, eventually finding work on board a YT-1000 Light Freighter. Eventually forming a relationship with aTwi'lek woman named Gern'i. But when their ship was attacked by a Sith, she lost her arms in the ensuing fight and Trenkyp felt he had no choice but to leave her and their companions behind for their own safety. This is his reason for wanting to get stronger, to protect others, to make sure this never happened to anyone else, and why he despised the Sith above all else. He couldn't let her down, no, he wouldn't.
Immediately, the Kel Dor leapt to his feet and reached out towards his lightsaber. He focused on the metallic hilt for a few brief moments and sure enough, the hilt returned to his right hand. He activated the brilliant blue blade and gripped it in front of him with both hands and stood firm, a steely eyed look of determination graves his face. Immediately, he could feel the soothing energy of the Force heal the bruising and cuts done to his back, and to Trenkyp, it was just like walking. Pure instinct took over and his body felt back to normal. He was ready to fight once more.
Now we are getting somewhere.
Appius thought to himself and smiled. He responded by twisting his body to the side, seeming completely relaxed, lightsaber gripped in his right hand. Suddenly, his lips curved into a mischievous grin. He reached his left hand to nearby rock and with a flick of his wrist, a boulder the size of his body lifted into the air beside him. Looming ominously next to him. Appius strained himself as he kept the heavy rock in place.
"Oh by the way, I left something out. Think fast!"
Appius hurled the solid object as fast as a blaster bolt at the Kel Dor, who was forced to dodge out of the way or risk being squashed into a bloody pulp.
Positive Takeaways
Great attempt at a story, you can really see where you were trying to build up a repertoire between the characters. You make it clear enough that they are Master and Apprentice and do establish the ‘why’ of their visit to the Crystal Caverns.
Needs Improvement
Your opening seems very… fragmented? It is great to have dialogue but some of it seems rather unnecessary and edges on excessive, resulting in something that kind of detracts from your overall post rather than bolster it. Keep in mind, I do not say this often as I tend to love some great dialogue thrown into ACC matches, so, the impact of the dialogue you tried to weave into this post is overshadowing of your actual story and even the combat you begin in the last paragraphs of your writing.