yeah he is right. those bats can spoil any solo mission through on the mission. hard to keep sneak and invis up sometimes tho. (i got through solo at level 40 whm so i know its possible)
Ok beware that if you are around level 40 and are planning to solo the magicite mission with just invis powder think again. Annoying easy prey bats aggro me and next thing I knew I was dead and was soooooo close to the alter room for the magicite where I would be safe so my ls buddy could rescue me but no I died and deleveled.