a big halloween baddy to fight lol you know, like the mother of all banes or something for a halloween event

yeah same here

coulda been like an epic npc elite or somethin cool like that...woulda been cool

yeah with some kind of kewl weapon that drives yer crew insane with fear

Could. You get to fight over-matched common, never ending spawn army of Revenants . They will also expire in 24 hours instead of 8 as well in case you think you can wait for them to go away.

was thinking more along the lines of "Bane Overlord" something unique that yea, woulda dropped a cool item that you could only get by fighting it an that you could only get at halloween

Since we already got Charged bane emitters, something like an unique planetary structure will be more appropriate.
Say, 2 size, 1 mining and 3 artifacts