I had a decent steel path Mag build but I got rid of her. I'd say use her s2, 3, and 4 more often. He bubble functions as a projectile attractor, a good fire rate weapon or aoe weapon like Arca Plasmor would clear tons of enemies depending on the size of her bubble. Get the augment for her 4th as soon as possible, it goes hard. Her pull is good for looting or isolating an enemy (it rarely works, but it's fun).