Personally I don't see why any of the builds need to be nerfed or buffed, they make sense considering what they are equipped with/trained to do. All that is going to happen is people will find a different way to annoy people with other builds. I guess it is just a case of some people get annoyed by different things. I don't find Valkyrie or Conqueror spamming attacks to be unfair or dumb, seems perfectly valid for the design to me. I personally get more annoyed with the Peacekeepers little guard break shank move. But I don't care if they nerf it or not, just means I need to avoid them or change tactics.