Clearing up some lore misconceptions

[MercuryD]

Yshtola sees her sacrifice in Azys Lla and says:
EN: This aether... It was a crystal of light! She too was one of Hydaelyn's chosen!
JP: 彼女もまた、間違いなく、ハイデリンに導かれた光の戦士だったのね // So she too was undoubtedly a warrior of light guided be Her

(It's early so my translation isn't the best but it works)