I don’t think you can get anymore braindead than a bloodwave build. Aim in general direction > everything there is dead pick up blood orbs > gather aggro of a couple screens > corpse tendril > fire blood waves > repeat.
I played it last season while simultaneously watching Joe Rogan podcasts, easy money. Matter of fact, I don’t think there are many builds in D4 that aren’t brain dead. Push one button, and occasionally press another to activate a passive equals win…