I don't mind some mp management on Drk, but it's a bit of a mess, IMO, even with known rotations for it. I mean, Dark Arts is so wonderful for so many abilities, but costs so much; one exception being when it's conjoined with Syphon Strike. See, then the increase to the MP regeneration JUST covers the Dark Arts, making the DA usage pointless for that case.
As such, I would personally love to see Dark Arts come down in price a little without anything else being impacted. I doubt this will happen, but a 10% reduction to DA cost might be nice especially for single targets. Alternatively, they can increase the cost by 50% and allow DA to be useful for two abilities within a 4s window instead of 2s. That would mean needing more MP off the bat to even use DA, but the gains could potentially be greater; which means figuring out how to re-balance that MP gain; maybe boosting the gain from BP or BS just enough during those few seconds that DA is also in effect? I don't know. That might be over-complicating things a bit.
Grit coming off GCD sounds oh so tempting, but I have lived with it in the past and can live with it again in the future. Therefore, it wouldn't surprise me if SE changed this for no good reason, and rotations needing to be relearned a little as a result because other abilities are somehow impacted for "balance."
I miss Scourge. Many of us do. They should bring it back. Someone suggested the idea of them making it part of a third combo? I would much approve of this. Knowing SE? They'll choose instead to double the damage, and halve the time, of Salted Earth. I mean, this could be nice in boss fights where the target moves around a lot, with or without constant phase changes, or in trash pulls where mobs die fairly quickly and leave behind a bubble for half or more of its up-time, but the change seems to me to be as unnecessary as it is likely to happen.
I'd like to see Shadow Wall either last three seconds longer or have a shorter CD timer by 15-20 seconds, with the defense boost remaining constant. Emphasis on liking to see this happen, not that I think it will. There have been times when I wished I either hand the extra one to three seconds of defense, or that I could hit the CD sooner, either one. I don't expect both, let alone one, to happen.
Delirium can be nice if those extra seconds to BS and BP could easily recover 50 blood gauge points, but that's so situational, and not really so reliable. Sometimes, maybe more often than it should happen for some of us, that blood gauge usage hinders our ability to do things such as Bloodspiller. Why? The gauge charges so slow. As a Pld, my gauge charges faster than I need it, more often than not. As a War, I rock the hell out of its gauge because it fills and spills so nice like cups of mead in your stereotypical Viking halls. The Drk gauge? It often feels like crawling through molasses in the middle of a war zone when every second counts, even with those blessed times that Blackest Night pays off, or even BP/BS. So, really, the biggest fix to consider here is adding to that gauge just enough that the job feels more fluid. I want to be a harbinger of death in the fight I'm in, not the harbinger of BEING dead even at full health.
So what do I suggest with that? BS gains are actually better than it seems like I just said. BP could keep its gains for the gauge, but I would like to see more MP gain from it--not too much of one, mind you--starting from level 61. Give Syphon Strike a bit more mileage. Bring back Scourge as a third combo that not only applies a dot to the single target but also either: 1) raises the blood gauge one time per combo usage, or 2) provides a small, reasonable buff to the Drk so that using the Syphon+Souleater combo on the same target increases the blood gauge a little faster. Combine this with my suggestion for reducing the DA cost a little and I would be more than happy to main Drk again once I'm done with the Pld SB tanking achievements.
Or, you know, we'll see what 4.3 brings. I'm hoping for good things, but don't exactly have the highest faith in SE. I want to enjoy Drk again, but I just can't right now...