"The Demacian Raptors were circling the battlefield from the sky, a force of armored riders mounted on giant eagles, a truly menacing foe but if they were here..."
You could put a period after eagles and it flows a little better.
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"leaning over and picking up his greatsword and used to help push himself to his wobbly feet"
This sentence reads a bit weird.... it feels like this could be its own sentence and then you can change some wording to make it flow better. Perhaps a period before it, then make it something like "he leaned over to pick up his greatsword and used it to push himself to his wobbly feet."?
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"Garen made his way through the sea of bodies lost in his thoughts until a familiar voice snapped him back to reality, he glanced upon the Golden Clad Prince charging towards him."
This sentence could be split. A period after the reality perhaps? It just seems to too much for one sentence.
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"He was so tired, he was sure the smack to his head must have given him a concussion."
Some transition word would help after the comma.
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"Garen was resting in tent put up for him when the prince arrived with the Demacian Standing army. His thoughts wandered to the outcome of the battle and whether or not his army was victorious before or after Jarvan's arrival."
Sudden transition in time again, "resting in** a **tent put up for him"
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"But he knew all too well how deadly Katarina was from stores he's heard."
Possibly a "though" instead of but or something, or remove the but and add at the end a "however" perhaps? Also.... "stories" your keys missed an i
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"Garen knew Jarvan IV since he was a child, not by coincidence either, their parents had matched them together in training to instill bond, as Garen was to be the protector of the Jarvan when he became king, as his father was the protector of Jarvan III. "
This needs made into 2 or more sentences.
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"Garen raised his palm to his face, "You're never gonna hear the end of this huh?" he groaned"
Do you mean "i'm never gonna hear the end of this huh?"? And a period after the groaned.
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""Now I'm really interested." Jarvan's voice taking a tone of even more interest. "
Im not quite sure what, but the saying that hes really interested and then the stating that his tone was of even more interest is irking my brain atm.
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"Garen looked over at his friend for a moment, then let out a brief laugh himself before looking up at the tan canvas that made the top of his tent as he once again played the two fights he had with her out in his mind."
Again seeming like too much in one sentence. You could probably split this after the "top of the tent. Once again he played out the two fights he had with her in his mind." < possibly? Switched some words around there as well
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"he spoke in a way that could only be taken as dreamy, Garen quickly coughed before continuing."
Period after the dreamy and comma after the continuing?
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"Garen Scoffed, and let out a laugh that sounded a bit too forced"
Lowercase scoffed, possibly period after forced? Not sure
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"cackled at The Commander's "
The needs uncapitalized? I feel a bit nitpicky with all the grammar and punctuation things, but i am just saying whatever catches my eye.
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"Garen felt the heat in his face and was sure he was turning, red."
Comma extraction service needed.
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"Okay, heh, I'm sorry. It's just the first time I ever hear you talk about a woman like that, **and **it happens to be about the Noxian that kicked your ass"
^bolded words that make this read nicer out loud as if it were actually said imo. Some do speak differently, but from a reading point of view it needed some words.... cause it just seemed awkward to read aloud to me.
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"Garen for just a moment, though at the ludicrous notion that he could be punished by the full extent of the law for just admiring another person just because they are Noxian. But he knew it was the truth, so he nodded to his friend in understanding."
Read this aloud. Theres some things that need the creators touch here.
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"There is an urgent matter in Pitlover that requires Demacia's attention"
Piltover? Also "read aloud" not "spoke aloud" also the "at the arrival at demacia" demacia --> capital
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"No idea... Strange,"
Period after strange
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""I don't need an escort, Jarvan." Garem insisted."
Garen
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"We don't know if there are any stragglers "
^bolded
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""It's decided, I'll see you in the morning."
Period after decided, another " at the end
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"HIs thoughts now returning once again to Katarina**. She** was beginning to find her way into his day even when she was not there**, and Garen grew frustrated with himself. How** could he think of a Noxian in any other way than disgust**? The** next time they crossed blades, he vowed that he would not hesitate to end the assassin's life."
Lowercase i in his, then i put some possible changes in bold. Can see if you like it or can tweak it in different ways or whatever you feel fits it best
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Sudden change in time again, still feels like some indicator is needed.
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"For a moment and the image of the red-haired assassins face appeared"
Remove the "and"
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"Garen let out a sigh of relief after riding through the mountain pass~~ and~~, which served as a natural border for the City-state of Demacia, and saw the Capital in the distance."
Oh look, a line through for items i feel could be removed, and bold to indicate fixes/changes that could be done!
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"The Commander and his small group of Vanguard Soldiers arrived at the city gate at dusk. He was thankful for this as he didn't have wad his way through cheering citizens, he just wanted to get some rest."
Bold move has been made.
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"After placing his armor down on the floor, he leaned his sword that was still tucked away in its scabbard against the side of his bed before making his way for the bath."
Remember about keeping the same tense, but here is how that could work? Up to you
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Sudden time change.... idk why these irk me so much, but they just are very.... standoutish to me. It doesnt feel natural. I just enjoy a little something to indicate some time has passed.
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"Garen yelled towards the door as he clambered out of bed**. He** let his military training kick in, getting dressed in a fresh pair of clothes in record time.
Boldalicious.
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"meet with him as soon as you're able"
Do these pants make my butt look bold?
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"Spending a good hour cleaning and polishing his armor until it was pristine was worth making the king wait, he couldn't show up to the palace looking like a homeless knight, He had an appearance to maintain, and it was just respectful to look your best when in the presence of the king."
Some punctuation work and tweaks to make this into a couple sentences.
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"attached mixed with his height **and **kept the large blade from scraping"
Let the bold be with you.
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"its lack of defensible it was more"
Lack of defence? Lack of defensible ___?
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""Garen!" Lux screamed as she saw her brother standing alone in the Castle Courtyard to his great surprise."
Something seems off about this part here...
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"Last he knew Luxxana was on a diplomatic "
Luxanna
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"a mischievous grin forming on her face, it wasn't often Lux had something to hold over his head, "
Period after face, split the sentences
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""Which will not go unpunished, I promise." said firmly, he tried to act as an example for his wayward sister, he knew she did not truly like the way Demacia was ran and was worried that if she did not adjust herself soon, that she may do or say something she can't take back. "
This needs some working. Too much for 1 sentence and needs some stuff added.
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"He wanted to be her big brother, but he knew that it wasn't about what he ~~wanted, ~~or his sister wanted, it was about what was best for Demacia."
Theres a line in my boot.
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"Garen turned to acknowledge the steward, thanking him before turning back to lux, reaching out and placing his hand on her shoulder, giving it a squeeze"
This seems to me like too much in one sentence again, it flows.... just not as well as it could.
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"The room was wider than it appeared, as the hall was not flanked by solid walls but with pillars, behind them were tables covered with refreshments and guards watching vigilantly, along with Xin Zhao standing the Kings side, as always."
Another too much info in a single sentence.
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"what some to presume was,"
"To what some presumed was," < possibly? (In the kings talking to garen)
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"We received word from the cities security leadership that Noxus has increased it's presence in Zaun, along with finding several agents in Pitlover, however, the information we were given is a bit unclear.""
This seems like quite a mouthful to me.
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"stuffing his back with a whetstone to sharpen his blade"
Back --> pack?
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"He noticed a picture of him with his sister under his arm on his desk, he made his way over and picked it up, it pained him to know he was not going to show up to dinner, and she was so excited for him to be there."
This can be split like so --> "picked it up. It pained him"
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"He didn't mind it just meant less people to bother him. "
Comma after the mind
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"As he laid down in cot below "
In a cot? The cot? Something cot