I know this question has been asked but I see so much about "training gear" and training trait on gear, doing dungeons, etc etc. I'm confused as anything. My main goal is PvP but as I just hit 50 I'm completely lost as to how I obtain gear post 50. Right now I'm in level 50 crafted gear and seem to be at a disadvantage to those with gear sets. At this point what gear should I start grinding or do I have to reach a certain champion level before I can do that?