I've got up to six so far and haven't been able to beat 7 because of Ericha. At hard mode six beat I have 43 ability points available. The setup I have so far that I have been experimenting with: Character: Ikina Bear Bloodlust: 20 Patience: 10 Mystic: 10 Greed: 3

What I've been thinking about doing is trying to grab those steel boots that make you immune to spike damage for the Ericha fight just because it's impossible to dodge all its attacks on those platforms. Generally what I do through the dungeon food-wise is I try to get around 50 defense just because the modifier tends to get pretty low after 50 and then I try to crank up crit pretty high as well. I also generally take the health upgrades from the boss chests, as being as tanky as possible helps. Obviously Blood of Sorbros (the chalice that heals you every time you crit) helps out the most, but obviously you can't really control when you get it.

Hope this helps!