Some bosses in the Pit are not procing Thorns like they do in the open world on their direct attacks. I clear level 80 pit with ease depending on the boss but even at level 66 with a boss like Bramble or Sharpshooter or Drowned Seahag, thorns never procs and it takes 5-10 minutes to take them down with Frenzy as my only attack skill. They can’t touch my health but it’s frustrating to just have to sit and wait that long. They will one shot themselves against me in their respective dungeons if I just stand there so I know they proc thorns with their attacks. Also Echo of Lilith doesn’t proc Thorns either.