In regards to Xayah...
Violet Balesko A.K.A Victoria Raven-Bane "The Mistress of Verve"
I posted this concept 3 years ago or so....I feel kind of flattered....
"After years spent flitting in and out of the most fortified strongholds and leaving a trail of bodies in her wake, she became known as "The Violet Raven."
https://universe.leagueoflegends.com/en_US/story/champion/xayah/
https://universe.leagueoflegends.com/en_US/story/xayah-color-story/