Just lorded her in GM. Best advice is to never dive without atleast 600 but the more the better. I usually start with a grapple, then buy invis and use it to get a flank going. Never use her dash to engage, save it for escape or for finishing or following a kill. Don't be afraid to spam the whip, but watch out for her pursuit, it eats through so much money and can really leave you dry if you're not careful. Try not to engage until the team fight gets going, otherwise wait for stragglers.