Not quite sure if this is the correct place to post this but I discovered a neat trick on Halion today, you may have noticed the bosses tail whip knocks down pets and stuns them just as it does players that get in the way. Well the dumb pets always seem to stand at the very back and get hit by every single one, so you can simply put your pet on 'Stay' when it runs in at the right moment and this won't happen. If you're going through the portal twice obviously you'll have to do this 3 times, but its well worth the micro-management.