Rengar VS Kha'zix story intro

I made this for fun and really like it, what are your thoughts? Should I continue to finish it?

Rengar scraped the blood of his boney claw and pulled the bears head off his serrated knife. He placed it on its mount, proud. Though the satisfaction wasn't enough. He growled as he looked over to the old wooden mount made for the one thing he couldn't slay. An insect that came from the void. It changed and adapted as it devoured its victims making sure it pulled each meaty chunk off its claws. People called it Kha'Zix. Rengar scavenged the bear's body and cut out parts of meat. He skinned the fur off its body and placed it under some logs. He rapidly scraped his knife and claws together making some sparks. The fur lit and the fire boomed. Rengar placed some of the bear meat onto a metal plate as the fire calmed into a small pile of burning logs. He lifted the metal bowl but stuttered. A sound came from the bushes as they rustled. He placed the bowl down and slowly picked up his knife. He ran towards bush pouncing with his knife in the air. His claws slashed down onto whatever was beneath him making and large crunch sound like snapping bones.
An injured Demacian general yelled as Rengar stabbed his right arm and smashes his legs with his feet. " AHHHH" the soldier shouted "Ahh, a Demician soldier! What brings you to my den? Do you wish to die, or has the wildlife become too hard for you?" "Don't kill me! Please, I beg of you," "If you do not speak I will slaughter you just like I do to this wildlife, you humans are so pitiful and degenerate creatures," "My men were slaughtered by... an insect-like monster.... it ripped apart my soldiers… piece by piece." "Kha'Zix" Rengar muttered "How bout we break a deal, I kill you and you die, ending your suffering" Rengar without hesitation stabbed his twin claw into the man's chest pulling out his heart and then proceeding to smash it with his hand, marking his palm with blood and meat.

"So messy for such a meaningless being" Rengar muttered to himself. Rengar picked up his knife and blow out the fire. He walked down to the river as blood dripped off his fur onto the ground. The river turned red as the water flowed down the stream off rocks making the sound of crackling thunder.

The insectoid ripped his claws through deer's neck making a clean cut as the head slit off and its body falling over. Kha'Zix bent over while its claws cut bits of the deer's shoulder. Its mouth opened revealing sharp teeth that molded with its face. The creature croaked and then swiftly devoured the deer. Blood was marked around its claws and mouth as it stood up and jumped to a nearby tree. The tree rustled as bits of branches and leaves fell out. "Sustanace" the creature muttered, "Must eat, must evolve". Spotting some movement in the trees it dashes down to so clear land and hides behind a small shrub, lying flat spreading out its claws and feet on the ground. Its skin color shifts to a dark green as it closes its eyes and then reopened as a light purple. A small battalion of Demacian soldiers marched through the forest.
"We have given the duty to search these woods for any Noxian scouts, look around for any signs of movement" shouted the general to the force.
"Yes sir!" The soldiers replied "Fresh meat" the creature hissed under his voice "Spread out and try to get a tactical vision point!" The general shouted "Yes sir!" The soldiers repeated The soldiers split and the general took the 2 strongest, bulky men with him. They wore giant chain vests with a Demacian sigma on it. They have veiled long swords while the generals weapon was a small dagger with a gold hilt.
Kha'zix dashed to a nearby shrub, pulling out his claw and feet and lying on the ground. His scales started to shift into a leafy green as his eyes glow a bright green. Sneaking up on a soldier He revealed itself and viciously ripped apart its chest with its two claws then stabbing him in the head. scales shifted, camouflaging into its surroundings. Dashing behind a soldier stabbing through the soldier back and pulling its claws through the solider head as its scream became a mere squeal. Other soldiers left their positions and moved up to the dead body. With one quick swipe, the creature slashed the faces of three of the soldiers, blinding them as they screamed through the agony. The general steps back to the cliff face and orders his two guards to take out the creature. Kha'Zix grabs the head of one of the soldiers with his claws, throwing him off the cliff then quickly slicing the others legs, wounding him and then proceeding to stab him through the small eye space of his helmet. Silence falls upon the general and Kha'Zix. The general slowly walking back meets the edge of the cliff. Kha'Zix pulls the generals head back with his claws and then pushing down with his feet onto his chest. The General falls off the cliff down into a river with a gentle splash. The surrounding water turns red. Kha'Zix pulls the helmet off the general's bodyguard and proceeds to devour his head. The river made a pool of red around the general’s body and washed it up on a bank. He dragged himself up on the grass with his hands and noticed a nearby fire. Pushing himself off the ground he walked as the cold blood spilling out of his head went down his back onto his legs. He shivered as he walked into the trees, holding onto branches. Barely reaching the fire, the general laid down behind a shrub, rusling it. His mouth sighed as he knew he was going to die, even if help arrived immediately. As his last few breaths occurred, he closed his eyes to a white noise in his ear.

A quick slash ascended upon the generals stomach causing it to rupture and burst. His eyes widened as a giant beast with a glowing orange eye appeared. The beast growled as...

Please tell me any grammatical errors that you find or if some bit sounds off (out of charater). [slayer-jinx-wink]