I'm running BKC for Walkure tomes and Feinne shadow, using Cerrine AS/Hardy AS/Tsubame AS/Flammelapis/Feinne and a grasta mule. Similar setup for green keys, farming Cerrine light at FGAD. It's pain-free and can be done while watching or playing something else. Episode dungeons are a little more strenuous, but only in that everything needs to be killed - I still try to set up a one-tap team where possible.
I tend to use a magic or slash team for running around doing character quests and general exploration just so I don't have to change the AD team.