If you want THE MAXIMUM DAMAGE you can go for Anarchy, it makes you less accurate, but you get a stack every time you get a kill, and reload without pressing the R button. But that's okay if you become inaccurate, because she gets "close enough" which, at 5 ranks gives u 50% chance for your bullets to bounce from the floor, and if you're using a shotgun with 20 bullets, each bullet gets the bonus damage, and then 10 of those bullets bounce. You should at LEAST cap your anarchy at 200 stacks, to make sure you don't get too inaccurate. And later on that same build path, you get Nth bullet, which at first rank the 9th bullet ricochets from first target to another, and it upgrades 5 times all the way to 5th bullet being able to bounce. Shes really op with pistols or shotguns if you build her like this. You can get her a Maggie, or a Butcher if you plan to get Legendaries / Pearlescents.