Desperate times call for desperate measures but clearly the open palmed strike Appius attempted to land clearly hadn't done anything other than make the Zabrak angry as he quickly realised that was a bad move. He normally wasn't the type to perform sneak attacks but at this point he was willing to try anything to get away.
Upon seeing the Zabrak approach him and the amethyst blade erupt out of his lightsaber hilt, Appius called upon the Force to grip Redeemer, his own lightsaber sheathed within his robes to his right hand. The hilt flew out of his robes and into his hand as Mortuary swung his blade vertically above his head and with his heart full of the intent to bring Appius to justice no matter the cost, he swung it down with veracity at the smaller humans head.
Green met amethyst as Mortuary's lightsaber was intercepted by Appius' horizontal reactive block just inches from his skull. Undeterred, Mortuary answered with another horizontal strike towards the human Jedi's left knee only for it to once again be quickly met by the green blade of Redeemer. It remained close to Appius' body, minimizing the effort and movement required in order to defend himself for as long as he had too. An overhead strike to his right arm was next and Appius reacted instinctively to block it again, only this time, instead of accepting his opponents aggression he shifted his feet an inch to the side. This little movement altered the amount of momentum he had to take from Mortuary's attack, causing the attacker to slightly overextend.
'Now!' Appius thought to himself as he called upon the Force once more to fuel him, with the power it provided he quickly seized the opportunity to slip around Mortuary's flank.
As he sped past him he spun around and called upon whatever emotional stimuli he could muster. Memories from the past welled up from within him and he focused it into the tips of his fingers. Anger, torment, loss and sorrow, his past pain would become his present weapon.
As Mortuary turned to answer Appius quick movements he withdrew his riot shield from his back and held it in his left hand though he had no time to defend himself from the streaks of blue electricity that struck him in the middle of his solar plexus from just a few feet away. Even with the Force warning him of the imminent danger he just didn't have time to react and instantly dropped his shield and lightsaber to the ground next to him just out of reach.
The electricity coursed through his body as he grunted and dropped to his hands and knees. The pain was something that he had only ever experienced on the numerous battlefields he had been on in his life as it stung and burnt him inside and out.
Appius was stunned and honest slightly perturbed at how Mortuary coped with the deadly bolt of lightning. But unfortunately for him, Zabrak anatomy is very different to humans. Having two hearts, they had a higher pain threshold than most species in the galaxy. Still, his singed armor was now evidence of the damage that attack gave him.
The human Jedi stood there with his fingers still sparking ominously with electricity.
"Please don't make me do this. I'm telling you I'm innocent!" He said exasperatedly. They were both Jedi after all. There was no reason they shouldn't be able to find an agreement somehow.
It was this moment of hesitation that Mortuary needed. The palm of his left hand opened and he concentrated the power of the Force to grip around his riot shield as if it was an extended limb.
He looked at Appius, who was so consumed with his feelings he failed to notice what Mortuary was doing.
"Jho ajonatarakenofiis, Appius!" (Eat sithspit, Appius!)
"What?" Appius questioned.
Mortuary spoke in Zabraki, which was a language Appius didn't understand which only served to confuse him.
The Zabrak Jedi took advantage of this moment and with the power of the Force behind it he hurled the riot shield as hard as he could at Appius. It collided with the human Jedi's forehead, dissipating the threatening sparks between his fingers and knocking him backwards off his feet onto his back. He was completely unable to keep his grip on Redeemer from the sudden shock and impact as it rolled away out of his hand just a short distance away.
Without wasting a second, the Zabrak grabbed his lightsaber, reactivated the deadly weapon and rose to his feet to the sensation of the Living Force flowing through him, empowering him and guiding him to do whatever needed to be done. It helped him push through the pain he experienced and almost instantly it became a distant memory to him. He approached Appius and with as much force as he could muster in his body he stomped his boot into the middle of the man's solar plexus and felt instantly gratified.
Karma can be a pile of Rancor dung sometimes.
Appius' eyes bulged as he gasped and spat out saliva and the sudden shock of the pain in his chest.
"You had your chance, I'm ending this now."
Appius glanced over to Redeemer, the only thing that could save him now. Perhaps it was sheer willpower alone or maybe just his survival instinct kicking in, either way he called upon the Force to pull his weapon to him like a thrown rope on a loose object. It skidded along the floor to his right hand and he reactivated the green blade just as Mortuary was ready to strike him down and lunged his own lightsaber into the Zabrak straight through his abdomen in one end and out the other. Appius retracted the blade of Redeemer as blood trickled out of both sides of the open wound in the Zabraks gut.
If a picture paints a thousand words then Mortuary's face told a full story as it expressed a mixture of shock, horror and disappointment in himself. He dropped his own lightsaber and keeled over onto his side as blood now trickled onto the floor from his open wound before it cauterized.
Appius slowly rose to his feet and could feel the throb coming from the lump that now formed on his forehead and the bruise in-between his ribs.
"Ow…" He muttered to himself. He was definitely going to feel those in the morning.
He exhaled a breath and released the tension he held within his body during the battle. His muscles ached and his breathing was heavy as a result of fatigue.
He looked over to Mortuary's body lying unconscious on the floor next to him. His breathing was hoarse but no matter whether he's a Zabrak or not a hole in the gut is not something you simply shrug off.
At least he was alive. That was something at least.
Appius began to walk away but after a couple of steps he suddenly stopped and looked over his back at the body behind him.
He knew what the best course of action was. Leave him there, if he dies then he dies at least then he could get away and try to clear his name.
But would his conscious let him do that?
No. It wouldn't.
'I'm going to regret this, I can just feel it…'
He paced back over to the Zabraks body and which was still lying on its side away from him. He dropped to his knees and placed his hands on the man's back over the hole in his body and could feel the power of the Living Force flow through his own body and out of it again like he was a conductor for the energy he was creating. But it didn't come to his aid, no, he willed it to come to Mortuary's.
There wasn't a whole lot he could do, a serious wound like this would take a full day with the Force to heal and that was time he just didn't have. Still, if he could just ease the pain even a little he was confident Mortuary would recover on his own.
If this battle taught him anything it's that Zabraks were annoyingly stubborn like that.
After a few minutes Appius finished what he was doing. He stood and activated his C1 Personal Comlink which was connected to Lawrence, his astromech droid connected to his ship on the beach not too far from his current location.
"Lawrence, get the ship ready. We're leaving."
He closed the communication as quickly as he opened it. He gave the body one last glance over before leaving and then he left the dense forests and canopies of Kashyyyk behind him. He needed to be quick, it wouldn't be long before Mortuary was up again and no doubt pursued him.
One lone thought occupied his mind, however…
Someone, somewhere is going to have to answer for all of this but he had a strange feeling he'd see Mortuary again.
This wasn't over. Not by a long shot.
Positive Takeaways
The post in general was short, but your use of amplification here was very well written, and a great way to represent Force powers. You also continued to build on the themes established by your opponent.
Can Be Improved
There were a number of small syntax mistakes.
There's a continuity mistake when you mention the fight taking place on the "forest floor". Always keep in mind the venue when considering your fight. You're nowhere near the forest floor, but rather hundreds of feet above it on an old Wookiee platform.