Grimacing in pain, the Sith slowly pulled himself from the ground as the sound of thunder rang out overhead, its crackling sound washing off the Juggernaut. Standing to his full height, the Sith glared at the Nautolan.
“Paltry tricks you have, and yet not unfounded in some form of logic,” hissed the Kaleesh as he ignited his lightsaber once more, its humming blade almost inaudible over the thunder above.
“But they won't save you from my blade, scum!” roared the Juggernaut as he charged forward at his target, letting the Force flow into his limbs like fire. Leaping into the air once more, saber in hand, he sought to cleave the alien before him in two.
The Battlelord stepped back in surprise before bringing his blasters to bear, unleashing a torrent of plasma at the Kaleesh. The bolts were deflected and blocked; at least those few that found their intended target.
But the sith was moving too fast for him to compensate his shots and before he knew it, he had to jump back himself to keep his hide from being cut in half. Letting a string of curses spew from his mouth, Rauji holstered his blasters and pulled the lightsabers from his belt. Igniting them both, their green and red blades sprang to life in the marauder’s hands before he had to bring them to bear. The Kaleesh rushed in for another attack, his speed making him a blur in the darkening light.
As the two Siths’ lightsabers clashed for the first time, lightning struck the mountain behind them, making the ground tremble. Rain began to fall in a torrential downpour around them, making the sabers hiss and pop as water hit the glowing plasma.
“You thought you could come here and escape the Inquisitorius? You were a fool to think so, whelp,” spoke the Kaleesh as he pressed his attack, his azure blade weaving a deadly net of plasma.
While Raiju could keep up in skill with his lightsabers, his speed and strength were not enough to stave off the Juggernaut’s strikes and with each one he stumbled back. He tried to take the Kaleesh’s feet out from under him to no avail. For minutes they fought like this, but to them it seemed like hours.
Back and forth the two went, each trying to gain the killing blow, but neither finding their mark. In a fit of rage, the Nautolan flung out both of his hands and unleashed a wave of telekinetic force right into the Kaleesh’s chest.
But the Sith stood his ground and took the attack head on, his feet planted like a tree weathering a storm and when the force hit him he did not move an inch. Smiling from under his mask, the Juggernaut waved his clawed finger at the Marauder.
“Now, now, that's not going to work twice on me, my prey,” chided the larger man as he looked down at the soon-to-be dead man before him who was panting heavily in the rain, but a grin crossed Raiju’s face.
“Then try this on for size,” throwing his hands out again, unleashing Force lightning from his hands that slammed into the Juggernaut. Skar fell to one knee in pain before he willed his barrier to life once more
The two stood there with their Force abilities straining each combatant to the limit, but it was Rajiu who gave out first in his already weakened state, collapsing to the ground in a panting heap.
“I was hoping for more of a show but I guess that's all you got in you, how pathetic,” snarled the Kaleesh before reaching out into the alien's mind and willing him to kneel before him. The Marauder tried to resist the Juggernaut before him, but found he could not. His trembling hand slowly reached into his own pocket and pulled out the thermal detonator.
Slowly turning around and walking back to his ship to get a safe distance away from the explosion, the Sith turned around one last time to watch the show.
“Goodbye, my pitiful target,” hissed the Kaleesh as he watched Rajiu try and resist the urge to do what the Kaleesh was forcing him to do, but with another force from the Sith he thumbed the trigger and a few seconds later Rrogon watched the detonator go off in a brilliant explosion of fire and dirt, leaving nothing but a smoking crater.
Syntax
Should be "signs of life".
Unneeded repetition of "fun" that doesn't enhance the story.
Story
The pacing for this post was off for a 2+2 with a 750 word cap limitation. You are trying to write an interesting battle from start to finish, knowing the "middle" before the conclusion can only be a maximum of 750 words. That is where pacing comes in. Only about a quarter, if that, of your post is actual conflict between the characters. We also know nothing about your opponent other than the fact he's Nautolan and has a blaster. A missed opportunity to strengthen your score.
I also found the ghostly tormentor to be really jarring. Something like that should really be part of your Character Sheet in the form of an Aspect. It's an integral aspect of the character.