just noticed theres a corner in the cave of frost, where bigger groups cant go through
maybe helpful
here is a picture to find the corner
dont even know if its in every map, but it helps me a lot as its a small cave and not "too" easy to kite there. hope this isnt a repost but i didnt find anything about it so, here we go.
and here a picture without the group, as you can see there is a hole, big mobs cant walk around it
yes this isnt a major exploit, anyway its useful, it prevented me from getting raped by these ****ers, so maybe it will help you in the same way