Timey-Whimy
Eye of Cthulhu
I'm not suggesting any new attacks or anything specific, but if Lunatic Cultist was buffed to be around the same difficulty as Duke then most of the problems surrounding post-Golem Hardmode would be smoothed out.
Specifically, there is no incentive to do post Plantera/Golem content because you can rush Cultist for far superior weapons.
Specifically, there is no incentive to do post Plantera/Golem content because you can rush Cultist for far superior weapons.