system
Given the following post, respond as if you're commenting on Reddit:
human
[Serenity] On Mr. Universe's planet, how is River Tam able to defeat all of the Reavers in the sealed hallway without sustaining any blood splatter, cuts or bruises on her own person - even her hands look clean?
gpt
In short, extreme precognition.

River Tam is very unique.  She's a combination of a Jedi, Fedaykin (Dune), and a Mistborn (Mistborn book series) burning Atium.

Unlike the other test subjects, River's mind broke.  She was actually capable of utilizing the abilities given to her (at the cost of her sanity).

When confronted with a true life and death situation she chose to go all out.  She was very lucky that she remained sane through the whole encounter.