Board Thread:Episode Discussion/@comment-14909251-20180818222758/@comment-4010415-20180821163906

Nikoli the rebel wrote:

1. But that is irrelevant, because we know Adam's weapon can cut through aura.

2. What doesn't make sense is why Sienna's remaining aura didn't heal her. 1. No, it can't. In regards to Adam cutting off Yang's arm, Miles blatantly stated that "it's not a sword thing". Here's the transcript of what he and Kerry said about Adam cutting Yang's arm off:

Miles: The Aura is, y'know it's like, we establish in the [...] tournament fights that, like... Yeah, every hit can drop it and some hits can break it. It just so happens that Adam's attack was so badass that, in one hit, it managed to break it and do damage all at once, it was super powerful.

Kerry: Yang had also been fighting off-screen.

Miles: Yeah, exactly. Yeah, that girl, that girl had been through some things! It's not necessarily a sword thing, more just like "Oh, he's strong! Oh, he's a scary man!"

It was the fact that Yang's Aura wasn't at 100% added with the fact that Adam hit her with an incredibly powerful attack that did more damage than her remaining Aura could handle.

2. Because Aura can only heal minor wounds on its own and is too slow to save someone from a fatal wound unless you have someone like Jaune amplify their Aura like he did for Weiss. Without Jaune, Weiss' Aura would have been unable to heal her stab wound in time.