I found that they were quite susceptible to status on my last playthrough, so I kept them stunned most of the time thanks to their blood spurting all over the ground.
Depending on your build, it may also be viable to just burst-damage them down individually. A Flurry would almost finish one off in a single attack for me.
Edit: Also, a tank build makes them pretty much harmless kittens. They won't do anything except attack, as far as I recall.
Last edited by Ludovician; 02/09/14 03:44 PM.