Having acquired pretty much all the loot there is to acquire without fighting any bosses, I promptly decide to fight a boss that will get me way more loot. In addition to Gogo, a bunch of really great items are inside the Zone Eater in Brave New World, but getting there is no longer a matter of just waiting to be eaten. Zone Eater will only utilize its party-eating attack once damaged enough, so you have to actually fight it. Fenrir and Golem are a big help to deal with physical counterattacks. Zone Eater doesn't seem to have a particularly exploitable weakness (at least not for my current party), but Locke can do well with the Rogue Cloak and Fire 3. Setzer keeps everyone hearty against occasional percentage damage, and Edgar does what Edgar does.