Holy crap. I just passed 600 (606) trying to get to do the Black Armoury stuff. It’s such a slow grind after 600 - like powerful gear rewards are only a couple of power levels above my current score. The only way to get more gear beyond the daily and weekly challenges is to venture into PvP which I am kak at.
In related news, I created my own clan (Knights and Knaves) so that I could have the [KAK] tag next to my name for PvP. At least the randos I get matchmade with will know what they’re in for.