You can, with good RNG, stunlock her by making her lose her balance and confusing her. I killed the slimes she summoned the first time (it's scripted) and she didn't summon another (she couldn't really do anything).
I buffed my luck with misty illusion to maximise my chances to land my debuffs.
It took me 45 minutes to beat her without this strategy and only 8 with it. I didn't test Alice dollify, though... It will facillitate the next fight.