How do you guys deal with Broodmother?

Every game I play, Broodmother is picked. Right now she's a ridiculous hero IMO. I wouldn't say I'm a noob (1200+ games of HoN), but she has such crazy pushing power, and if you don't carry dust, or rev wards, she goes perma invis, similar to Tremble when he first came out.

Every game it's the same strat, as soon as we leave the lane to team fight/push, she just solo pushes so easily, than we have to port out to stop her. Any ideas? Apparently she is quite strong in the laning phase as well, though I never was in the same lane as her.