By Asura.Vyre 2016-07-26 23:59:55
For soloing I recommend SMN, Marauder, and SCH. None of the monsters have positioning arrows, so positional requirements flow freely. SMN is the best to attempt to solo the whole thing with, since you essentially are a tank and a DPS at the same time(Chicken Nugget is a beast).
I say Marauder instead of Warrior, because for the first 35 levels, Warrior has no advantage over it, and even at level 35~50, the advantage is slim. You get more sub and DPS related abilities to speed things up. Either way, it can solo to floor 20 pretty reliably on its own, given decent luck with Pomanders even without lots of Aetherpool upgrades.
SCH is like RoD said. If you know how to play, it'll do great.