Riot shouldn't add a Rival for Ahri and Xayah together
Disclaimer: My English grammar and explanation is terrible, sorry...
Yes I understand that Ahri's lore from 2011 isn't canon anymore
But with the latest lore that Riot wrote which is on from the Ahri statue, she still has moral values,innocence, independence, and wants to try to be friends with Humans, she fought the Noxian soldiers because they were attacking her, she had to defend for herself.
(I couldn't find Ahri's lore so the least thing I can do is link you to this reddit post where its copy and pasted) https://www.reddit.com/r/leagueoflegends/comments/3vjf03/ahri_lore_stray_fox/
It is official that, Xayah has something against Ahri https://www.youtube.com/watch?v=Y7u0BeSHYFQ&lc=z13wuhj5vvmxwprfd235udv5ltylilj1n.1491672901634862 skip to 1:25 - 1.34
Xayah calls Ahri a Mu-Takl, which it translates to "a traitor"
But note that Ahri doesn't want to hurt anyone, as she wants to be more towards innocent and independent, reason why she wants to become Human, which I can think of is freedom, in their time and age, they aren't really in a civilized manner, but she is not a "traitor", unless Riot can confirm that she has fought against her own heritage and killed them. But sure, her wanting to become human can be a disgrace (but in our world we are civilized enough to let immigration a thing), but it just doesn't make sense why she has Vastayan Blood if that's where she originated from. We all know and love her lore for knowing innocent lives and know sympathy has she finds another way to try to be human, and try to make friends with them so she can adapt to Human society.
Rakan, who has a special interaction with Karma, blames her about starting a War, and that he wants "Freedom". Which is what Ahri is possibly after as well and its what it feels more towards, maybe Vastaya isn't really the peaceful faction or good of a place to be in, maybe its one of the hostile factions, just like Noxus, and probably Zaun that we have today. https://www.youtube.com/watch?v=CzXoQXrp618 Skip to 1:02-1:42 for special interaction
Riot please, you need to stop adding Rivals for one of the few and only champions that don't have Rivals... stories like these can be worked around and be more unique and interesting. Xayah can dislike Ahri and don't approve of her lifestyle but not have her as a "rival", but she is still not as bad as how Vastayan view how ionians "Harmony" "being locked in the cage" and taking their freedom away from them (if you watched Rakans interaction with Karma) . Especially think about swain, Swain is like the leader, Mastermind, and the main villain of Noxus. For anyone that doesn't know, Noxus is a hostile faction that is known to like to ruin everyone day, and are evil.
We already have 96% of league champs with Rivals already
Just have Xayah view the same way how Aurelion sols, god fist lee sin and etc,'s interaction with her, but not as a "Hostile Rival" way. I want her independence and innocence to be kept. Being a part of the faction does not make the character appealing and charming (in my opinion)