I'm currently trying to get the Barrow Dyad catalyst. The quest wants you to do expert Nether using only a glaive or shotgun, and a sword, plus the Barrow Dyad itself. No way to stop overload champions with your weapons. It's infuriating but that's not the point. My first attempt put me in the Trenchway. I did all the encounters fine and grabbed some decent boons, I even got two extra revive tokens, putting me at 11. I began the fight with the tormentor boss and destroyed all of the adds and started picking away at the boss's health. It's health is WAY too high and it hits way too hard. I took me over 45 minutes just to kill the boss, and I was down to 0 revives moving to the next area. Also, if you die while the grim healers are out, it will spawn you all the way across the map on the other side of the chasm, forcing you to run all the way back to the boss arena, while the boss heals. If the grim aren't out, you respawn in the boss arena with no issue. The tormentor boss is far more difficult than any of the other 3 bosses in the Nether, regardless of difficulty, primarily just because it has what feels like 3x or 4x the total health, can heal, and cheeses you with spawn locations. I've experienced many bugs with this boss too, in the past. I'm glad the bug that caused you to fall through the map when it grabs you seems to be fixed. I've also had it where you can continually damage the boss but its life bar doesn't decrease at all. I hope that's fixed as well. Bottom line is, 45+ minutes for a single boss encounter is ridiculous, especially with a restricted loadout, all to obtain a catalyst. Just let me run the Exotic mission on master difficulty instead. lol.