Marian has no idea what they're talking about! But it sure sounds like it might be important!
"- I know I won't be any good for your, uh, team," that's not the word but she's forgotten the right word, "at graduation. Since I'm not magic. But I am a fully trained and qualified ICU nurse - I've saved patients with gunshot wounds and severe sepsis from other injuries - and I'm the only person here over twenty-one, plus, uh, I didn't have to spend most of my early teens frantically learning survival skills and combat magic instead of anything else? So I bet I know a lot of science and bio and chemistry stuff that no one else here does. I've already got one of the Chinese students doing a medical apprenticeship with me...."
Marian runs out of breath and a second later runs out of bravado and– shit did she just say all of that out loud, aaaaaaaaaah they're going to think she's - what - she doesn't even know, actually -
She wants to survive as long as she can and she wants to save as many people as she can until then and that's what's important here.
"- Anyway. I think I can save a lot of kids who do have magic, and - maybe make the difference, for you guys, on having enough allies at graduation that you all make it out alive? But if you want me to - provide all the value I can here - then I need help with the surviving part. Because I've got a magic knife but I can't learn spells. I just wanted to say that."