This isn't me trying to show off (I'll remind you all I got stuck on Moorwing for like an hour) but Broodmother was like... it was a "wait, that's it?" "is there a catch?" "is this really a boss or...?" fight for me. Maybe I just fought it late (I completely missed the little gap in the ceiling on my map that lead to that area until I was nearly done the act) but it just... shot out some flies, I jumped and killed them all in 1 hit, then it shot out a few blobs and just sat there and I just went up to it and smacked it a bunch and... I mean, I dunno, it just died? I forgot it was even a boss, even when I looked it up to see what people were talking about with the comments on how hard it was I couldn't remember where or when I fought it.
I don't think aggression works for most bosses and I usually have to play patiently and really pick my spots but this boss just... stood there and didn't... do anything? So of course I smacked it. I dunno! I maybe got lucky or am missing something.