Board Thread:Episode Discussion/@comment-34633327-20180105193053/@comment-30530552-20180109153308

I think Yang was suspicious once she saw Raven on the surface because she'd just seen her go down in the vault not a minute earlier, and knows about Emerald's Semblance. However, it still makes for a decent distraction which is enough time to get an attack in, and Ruby would also likely know this. Emerald needs to be taken out first so that Merc is easy to gang up on...assuming they don't chicken out on the fight it could be an easy revenge fight for both of them.