In about 10 days, LB2 will likely be released, and even if we rush through the story with apples, there will only be a couple of days to farm the Aurora Steel Skadi needs to level her skills past Lv7, before she gets released early July.
Skadi needs 24 Aurora Steel per skill to max them for a total of 72, and outside of some lucky drops during the story, the 20 Aurora pieces in the Summer Festival shop about a month later will be the only relatively soonish source outside of plain old free quest farming.
The best free quest for farming it will be https://gamepress.gg/grandorder/arknights/grandorder/quest/viaduct-ice, with a drop rate slightly better than feathers in Salem (38.9% chance per run instead of 35.9%).
It’s an all-Rider (Valkyries) node, so you’ll need Assassins, Zerkers or Alter Egos (or Arash for W1, like me).
My farming comp will probably be:
Arash W1, Summershou W2, Okitan+Shiki W3.
Thanks to NP3, my Okitan is guaranteed to do at least 52K damage, while Shiki is guaranteed to do at least 138K damage with my Lv3 Arctic MC buff (Valks are Heaven, while Okitan and Shiki are Human, so they both get that 1.1x attribute modifier).
The advantage of this setup is that I don’t need any support or Plugsuit, so I can farm XP for the arctic MC and bond points for servants (via support lunchtime).
Since I don’t need facecards and W2 is fairly low-HP, I guess I could also replace Shishou with Sparty for faster NP anim.
Anyway, feel free to share and discuss other comps here.