LogFAQs > #970702471

Just to piggyback on what sceptile said...

The quirk of this being a gacha is that they can't nerf characters. There's legal ramifications for it. So in the very early days of Genshin, when nobody knew anything about the mechanics and what their implications would be for an eventual meta -- including the developers -- some mechanics were included in some of the OG 4-stars that were kinda broken. Mihoyo has been very careful not to replicate any of that ever since. I would go so far as to say they haven't released a good 4-star character since Rosaria, who was the third post-release. Kuki found new life when dendro released, but beyond that, none of them see play outside of specific limited uses (like Gorou.)

And yeah, Raiden kinda sucks when you're used to fighting Dvalin, Childe, and Azhdaha. But I used to get beat up something fierce by Andrius back when the game was new, and thought he was an unfair boss. Just bring a healer, chip a little at her during phase 1 -- especially if you can stagger her -- and then get ready to go nuts as soon as phase 2 ends. If you aren't killing her before she goes into phase 2 a second time, then yeah, that's pretty awful, and that's initially what I was dealing with until I got used to the fight. As it is, I'm still very uncomfortable with the new boss, which feels like a lot of running around doing nothing until you unleash.