There is one I was testing.. takes some time to set up though.. just south of the night terrors are a group of stealthy spiders... they attack in bulk... ya need ot take ball bags down there and build a super small fence around your pet ( while invsied or they will jump you) ..then dismount and your pet will try and reveal them them and they cant attack through the bags so they will not show...
after it reveals them... invis remount repeat... this is one of the things I've thought of... but have not tested how well the gains are....or if it even works.( that is I know it will reveal them..but not if it will gain). but its something to consider if ya want to give it a go..