Board Thread:General Discussion/@comment-14061097-20160420195004/@comment-28288412-20160504200900

Well Qrow is following team RNJR to Mistral so its possible that Qrow could teach Ruby the basics. He may not be one himself but I'm guessing that Qrow has a decent amount of knowledge on the Silver-eyed warriors and how they work and learn from both the story Ozpin told him and Summer as well.