Board Thread:Episode Discussion/@comment-24573226-20170204043226/@comment-26397825-20170205011155

Doesn't change that I called it. =P

It could apply to everyone except Ren, since we never see Ruby or Nora react to Jaune and Qrow beyond attacking the Nuckelavee. And Ren would be able to see through it because it's his semblance doing the work. But it does seem like it only affects Grimm, which is still handy.

Though, if it only affects Grimm why doesn't he use it more in combat? It's not like he would have to worry about friendly fire, so he could literally be a ninja and attack while the Grimm can't see. At least if it affects everyone except him, it offers an explanation as to why he doesn't use it when teaming up with other people - no way of letting them know where he is and so friendly fire is a very real risk.