BUR #26011 has been approved by @nonamethanks.
mass update modern_mogal -> -original
Most of the Modern Mogal posts are also tagged with original. We should only need one copytag for these posts.
Since the Modern Mogal series has a developed setting with many recurring characters as well as a few pieces of fanart posted on Danbooru, I think removing original makes the most sense in this case.
As far as I can tell, there are no crossovers with other artists' original characters, so this BUR should be safe to approve.