I've been interested in making a magnb for a long while, but they didn't seem to be very effective until this patch. I've been looking at certain builds and they never mention dark shade, which seems to be free dps considering its duration, but I rarely see anyone adding it to PVE builds.
On a hybrid NB tank I have with Baharah's curse/Shalk Exoskeleton/Malubeth, I was hitting 750 a hit with the double shadow morph, so in theory it seems like it could hit decent dps with a damage focused build. What are the pro's opinions on it? Also, does it proc with necropotence and could that potentially be a strong increase to my other damage options?