Oh boy. This was actually kind of rough. I originally had a 9 Op with Waai Fu and Pramanix in the squad as well, and Folinic on S1, but after cutting those two, I was barely missing the damage required on the second major Wraith wave. I was kind of at a loss, since I’d previously thought to just wait until I could get my own Broca raised so I could borrow a stronger Folinic since Pramanix was dying, but cutting her meant that Folinic’s normal healing without skill was barely enough to keep everybody alive. That gave me the confidence to try S2, which ended up giving me the extra bit of damage I needed. More insights in the comments below.
Thanks to Spinobu (check him out at https://www.youtube.com/channel/UCKGOjyObWLB5PBEn2M83dsQ , he does really cool stuff!) for the thumbnail!
Originium Abomination 源石惡物 – Arknights Originium Dust OST
Stand Up Be Strong – Bleach OST