If you could just make her hold back a couple of her abilities (the ones that cause blind and slow come to mind) in the ch. 3 battle, I think that fighting her would be more feasible. I know running away is recommended, but even hasted (until she slows you), the bats (and, to a lesser degree, the archers) slow me down too much... I've yet to actually get away from her, although maybe that's for the best, since running in circles for five minutes doesn't sound too appealing anyways. I've gotten her down to badly injured a few times, but her nifty blinding ability that isn't dispelled by true sight makes her essentially unhittable once she invokes it.
I like all of her abilities conceptually, and it looks like she'll make for an excellent battle in ch. 6, but at level 10? Maybe my technique is lacking, and if anyone has some more tips I'd love to hear them, but, uh, it's just not working out at the moment. I'm loathe to go back to the original bodhi that folds in about 12 seconds flat, but it's looking like the only way I'm going to make any progress at this point.
So, uh, yeah. Toned down ch. 3 bodhi would be nice.