The Lore of Evelynn(red reply please!)(REPOST)

I think I have an idea for the of Evelynn that doesn't impact the recent stories, and keeps her core identity as a mystery, but I need to talk to some reds about the legitimacy of this lore update. On top of that, I'll be posting a visual upgrade for her by the end of the week, and I need to talk about lore and confirm it could fit in with the new look thematically, and identity-ly Base of the lore ideas are: 1)she was born long ago, but is less than half the age of other shadow isle champs. 2) she IS alive, kinda, but has been infected by the black mist to the point of becoming semi-transparent. 3) was taken in by the order that Lucian and senna trained under, before the pistols of light, and back when prayers were used to affect the undead, such as with illaoi. 4)she is a decendant of the ruined King, but not directly... 5) She was physically taken by the isle's original inhabitants, which bound her to the cursed isle for eternity. As for point 5, The shades of the original inhabitants, sorry, and neither succubus or vampire fit her shadow isle origins, but if the shades of the blessed isles were twisted with thoughts of revenge against the ruined King, it's probable they hate his decendant. And if I were born as a thief, and brought in by an order of what amounts to religion, she's very likely to have an inclination to go out on her own instead of seeking help, and a thief typically stalks the target, waiting for when they aren't paying attention, so she set off, defending herself from the malicious ghouls sent by the likes of karthus, her chants keeping her soul safe from the effects of the mist, but her body faded, letting her physical ties to the world fade, lending to the blessed's ability to place their revenge on the Kings bloodline. All characters in the shadow isles with authority have ties to objects that give them their duty. Mordekaiser's bones, hecarims glaive, karthus's staff, kalista' black spear, and yorick's shovel, Evelynn's is her faith, bloodline, and the pendant passed from generation to generation. She also needs a physical object that continues to tie her to the shadow isles due to her cursed body, so the garbs of the blessed, kept together by the spell, are still around, and keep her tied to her own hell.