The Great Darkin war. The most ferocious battle of Runeterra has finally dawned on the world. The Aspects, mostly Celestial beings being cast into human bodies, with the example of Pantheon, the Aspect of war, or Taric, the Guardian of Targon, Leona, the aspect of the Sun and Zoe, the aspect of Twilight also known as the "Trickster".
The three horsemen of the apocalypse, Aatrox, The war bringer, Rhaast, The Reaper and lastly Vaarus, the Pestilence, are the main threat considered by the Aspects of Targon, known as the most powerful Darkins. The Darkins have a force of 50 000 while the Targonians, much more reliant on the Aspects only have a force of 10 000.

Battle preparations Darkin POV: Somewhere in Kalamanda.

"Comrades, the dawn has finally set, the war draws near and I can feel my blood boiling from the anticipation! We have a selection of a few different strategies to annihilate those vermins, may I suggest?"
"Calm yourself Rhaast, before suggesting anything we need to be sedate about this, this is not like the other wars we've fought." Suggests the committed Marksman of Pestilence.
"As much as this pains me to admit it, he's right Rhaast, I too want to shed blood on the battlefield, but a tactical approach is best suited for this situation." Admits the War-Bringer.
"As I was saying, I have a few strategies in mind, let me explain,
the scouts I've sent have returned from Nerimazeth, it seems the battlefield will be in our favour." Rhaast gets up and walks over to the large map hung up on a nearby wall, which is showing all of Runeterra in a decently large scale. Rhaast starts pointing towards the estimated battlefield and starts explaining. "What I mean by that is the fact we have some troops already set up near the battlefield, and the fact our scouts learned that the actual number of troops the enemy controls is fairly lower than ours, although the path to there is not in our favour..."
"It's going to be a 2-day walk from here, the path is not preferable either."
"I was getting to that point...but thank you Vaarus, now, the strategies I have been preparing are as follows: The first option we have is the standard 'Front-line Cavalry', which is the specialty of my troops, they're our meat-shields and our initiators, the second option we have is Vaarus' troops' specialty, which is a more long-range focused attack, which is great for an ambush, with cavalry supports from the sides and warriors in the front, our last option is to go for the all-out warrior composition, which includes cavalries at the front along with warriors, having my troops behind the warriors and on the sides, Vaarus' archers besides the infantry led by Aatrox and some of his troops. Opinions, anybody?"
Everyone in the room sits still for a few moments, the atmosphere in the room cold and silent, it was as if you could hear the sounds of breathing and the wind blowing outside, Aatrox and Vaarus stay silent for a while, conserving all the information they just received, and after a while, Aatrox breaks the silence.
"I think everyone here is aware that combining them is the best option, and I think I know how, I suggest we could have warriors in the front being led by Rhaast, cavalry support on the sides, archers behind the front-line with Vaarus behind the archers, the infantry behind Vaarus with me leading them, it gives us the best possible position to have with protecting the archers in the middle and having cavalries disrupt the enemies' back-line, while the warriors keep their front-line busy, now as for a flank, if we do end up getting flanked the infantry and I will protect the archers, any objections?"
"None at all." Agree on both Darkins.
"We're overthinking this, the enemy is weak, they will crumble before our very feet." States The Reaper.
"Never underestimate your enemy, Rhaast." Remarks the Marksman, "Still we have a tremendous possibility of conquering the enemy, but we have to be prepared for everything since we are not sure about what kind of force the enemy possesses, so don't take this lightly."
As the Marksman finishes his sentence, the 2 Horsemen of the Apocalypse rise from their chairs, with Rhaast already standing up, they put their weapons on top of each other while holding them, and the three start saying their War Chant simultaneously.
"We, born from the depths of the abyss."
"We are oblivion, we are destruction and doom."
"We shall be the very thing that ends life itself."
"WE, are DARKIN."

The three leave to their barracks to inform their Vice-Captains that the War will commence soon...

Mount Targon Battle Preparations POV

In the depths of Mount Targon, lies the sacred place of the summoning Ceremony. Where only the King of Mount Targon can plead help from the ones above.
The king and his most trusted General enter the Sacred Place.
"But my Lord, what if your vision is incorrect and we summon the lord of Sunlight for naught." says the worried right-hand man of the king.
"Silence! If my vision ends up being incorrect, I WILL pay the price, but if I'm right, the end of Targon will come soon if we don't do this." The king answers.
"But my king, if you succeed, your body will be possessed by her."
"It is a price the king must pay, have the summoning chants been found from our Library of Alexandria?" Asks the King.
"Yes, my lord. We have done all the preparations needed for the summoning." Answers the head Wizard of Targon.
There is 1 rule for the summoning.
One must be the King and possess the royal blood, all the king has to do is put his blood on the altar and chant the summon.
"Everyone, stand back."
And so, the chant begins.
"Give thy soul into this body of mine, give thy sword into my hands. If in accordance to the summons of the Ascended, if thou dost accede to this will, this reason, then answer me. You hereby swear, You are all that is good in the eternal world. You are the disposer of evil in the eternal world. Thou seven heavens, clad with the Great Trinity from the circle of constraint, Guardian of the Heavenly Scales COME FORTH!"
As the General is blinded by the bright light, he regains vision of his King, it is not the form of the man he had known for many years, in fact, it wasn't a man. All he could see was a woman who wielded a massive shield and a sword.
"You there, what year is this?" Asks the mysterious woman.
"Th...The calendar is on year 700 years after the Rune Wars."
"Hmm, Is that so? That's quite some time ago, moving on, I shall request help from the others that already reside in this world."
The men in shock, unable to form words from their mouths. After a while of constant silence and awkwardness, the general gains courage to ask the Aspect a question.
"Wha...What if the others don't listen to your call?
"They will, for this great battle has been foretold in the annals of history, but fret not! Because I, Leona of the dawn, have arrived.