By sustainable I mean without the constant use of hastaga motes/spirit of lowtown ect. Wine is allowed since its easily and cheaply purchased.
I'd definitely say something with multiple brave suits would be up there. Maybe zArcher/zHunter/Time Mage or Machinist to cover decoy/rez/haste? Individually I know that Samurai/Breaker/Uhlan are all up there in damage dealing, but they also require either annoying to farm items or a class that can buff bravery. Maybe zBreaker/zUhlan/Monk as an option? Knight maybe?
Any ideas? Trying to mix in buffs really throws me off :(
IMO only the enemies with a crapload of HPs(and they are not so many) are worth mixing buffs, but even when you face one Breaks(defense lowering ones) are more beneficial in that case(IMO)
Haste and/or Berserk are more than enough for regular battles even in optional dungeons
So why let it bother you so much?
+ damage depends on who do you fight atm, but even if say enemy(s) you're up against have no obvious weaknesses I'd probly go with Hunter/Uhlan/Breaker at the early game, and switch Breaker(or Uhlan) for Samurai once you get Masamune(s) + Genji Stuff