Well, for farming on master, I've got a pretty solid team, and I've noticed a few things about it.
So, my team is Dark/Dark Hades, Ancient Light, Holy Ripper, Gr. Odin, ADK. From there, I can pair with Abyss Neptune, Gr Odin, or Another Hades and complete the dungeon absolutely no problem at all. Each has their pros and cons, Neptune is obviously only good for the Chimaera and Lilith, where he does a pretty good job of helping burn those shitheads down, especially since you're doing it with no damage multiplier. Hades means double Gravity and that means fuck you, 1.6 million boss HP, which is awesome. Green Odin also does light damage on his nuke, so that's excellent as well. Also, I've noticed that the "Light Bind" effect comes up FAR more often if I have a Light/Dark Hades in that friend slot...apparently 3 is the magic number of guys on your team where they start saying "Fuck you" more often. Run less than that, and the effect rarely comes up. I still get double bound, but not light bound. In addition, Lilith converts Light to Block at a far lower rate as well...maybe once a fight if I have 2 lights, and every other turn if I don't.
Green Odin also makes the boss fights stupid survivable. Match hearts every turn and you win. Boss hits for something like 900 if you have another resist lead and he's not doing his curse ball. You could be running 4 gigas subs and heal that. He's kind of inferior if the chims are synced, and you need to pay attention to turn timers on the waves more, but he's pretty solid, and if you can't do it with just 50% dark, try that out in your friends spot, and you might be able to manage it.
All in all, I must retract my statement. I've basically been running master non stop since I figured it out about 48 hours ago. I level up every 3 runs or so, and while the dungeon itself does take a good hour to do, i've gotta sleep, and work, so it's not like I'm waiting on stamina. I'm not gonna be burning stones on it, so this is as fast as I can run it anyway.
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