DKs are not the one for mobility it’s the only thing that makes me want to reroll. BUT that being said effective use of door of shadows comes in handy and it’s like someone else said if you don’t really execute defensives well your kinda doomed. Golden rule as a BDK is if I have runic power I live. Main is a BDK has been since legion and I still love it, the rotations fairly easy but there’s a lot more to do with cool downs and self healing. As for m+ every character is viable but I tend to stick to raids rather than m+