Stack aphrodisiac on her with Amber's bottle, the spell from Elly, or the various seduction skills from Vivianne. I used the manticore barbs since I'm doing an item only build right now. Five to eight rounds of stacking aphro is needed so the DOT eats through her stamina. In the mean time, you need to defend and heal. If she gets you in a slime stance, teleport out or maybe get lucky with a struggle in a power build (I don't power build ever). Every few rounds throw an attack at her to push her over the edge.