So I have a quest and a couple of items to create that I need brains for. I haven’t had any drop for a long time. I was going to the Warden over and over as most threads said that was the place to go for them (I’m currently about to get to the big fort (ikon?)). I could never get brain drops there and finally found deep in a thread that in some update they made drops only occur in places where enemies were close to your level. Wondering of the truth of that as I’ve only seen it hidden deep in one forum. Also, if that is the case, how do I figure out where I might get the drop and where I’m wasting my time and will never get one? And is there a way to farm for drops anymore if this is true? And were can I get some damn brain drops???!!! 
Thanks for any help guys.
By the way, the post about The Warden no longer working sent me to the overly infested green circle on the map with the huge, hulking green boss. Sorry for the vagueness as I’m out of game right now.