The Fifth Darkin, I think I know where it is
We have been told through the League of Legends lore that there are a total of five darkin; Aatrox, Rhaast, Varus, and eventually Tryndamere according to his lore. But where is the fifth one? I think that the final and fifth darkin, a being of war and bloodlust, is hidden in Noxus. Hear me out.
Noxus is a war driven nation respecting the values of physical strength and victory in battle. Extremely imperialistic and violent by nature. This was the first clue to me that a darkin may be at work. In Aatrox's original lore he is able to insight anger and violence into any nearby mortal and cause them to be a major terror in battle. Rhaast demonstrates a similar quality with Kayn and his constant struggle to host Kayn's body. Now it may be discouraging that I am talking about an entire nation rather than a singular person, but consider Varus. He is the result of a darkin making a host out of two people so this can be done to multiple entities at a time. Even in Aatrox's lore, he is able to make an army of I think it was 3000 fight like an army of 300,000 so the entire subjugation by an extremely powerful darkin is not a far stretch.
My next clue was the reworks on both Sion and Swain, both noxians and both received reworks relating to a red, blood like texture update and an imbued power of something far more dangerous. Starting with Sion, his lore is very convincing to me that he was imbued directly with some sort of darkin magic. Again referencing back to Aatrox, death is simply an obstacle for darkin. Darkin do not die the same way mortals do, their "souls" are imbued with something of significance, traditionally; Aatrox has his sword, Rhaast his scythe, and Varus his bow. However I do not think that Sion's soul is aligned with his axe, but rather his jaw. Occasionally in the pre game loading screen, a did you know will pop up sayin that Sion killed the last king of Demacia with his dying breath and the crown is now his jaw. It's an item of significance for Sion that binds him to his first life and holds him to the mortal plane. Swain is an entirely different example. On multiple occasions I hear a quote of him being referenced as a demon, but that seems to be more in reference to his abilities that were gifted to him. His whole memo is stealing souls from other champions and using them as a power source. Starting to see the relationship? Also in game playing as Swain, he seems to reference that Noxus has a hidden power that they are not yet ready to reveal, which could very well be a full fledged Darkin that has been raising an army out of Noxus to take revenge on those who nearly wiped out the rest of their race. And the recent Darius God King skin just makes me more suspicious leaning towards the assumption that he can kill a celestial like Zoe or Aurelion Sol.
These are just the a few clues from the game that I have picked up on that seem to have too many coincidences to ignore. Honestly I'm kind of surprised I haven't seen this anywhere else. Let me know what the holes in this theory are, if anyone sees any, I am sure there will be some.
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