User blog comment:Diyartifact/Shepard's adversaries/@comment-1895174-20120408234519/@comment-2079715-20120410121943

See, LoveWAffle,that's the question I asked when I finished ME3. I believe Harbinger was supposed to be the main antagonist of ME2 and 3, but something happened in EAware team. Actually I don't believe it, I know it. According to the original Drew Karpyshyn story of ME, Harbinger was suppose to be the ultimate badass and the antagonist in the way you describe him.