Really well, I couldn't spam my skills, but didn't need to anyway. If she didn't have to be the tank I would've raised her dexterity (40+~6 item bonus at the end) more. As mentioned earlier, I gave her 2 stunning runes to use with Topsider's Honor and Keening Blade(? the one Gaxkang drops) and damage runes, she could solo ogres easily.
Her specs were champion and berserker (which I didn't use).
While we're at it, isn't Berserk supposed to be a sustained ability? It looked like an activated self-buff to me.
Can't compare her to WMD magi since I didn't use them, but she was pretty effective.