As a part of today’s Campfire Chat, the developers revealed that high-tier Nightmare Dungeon difficulty will be decreased as a part of a Hotfix that will be released later today.
Patch 1.1.0 Campfire Chat Summary Diablo Campfire Chat on YouTube
The reality is that Nightmare Dungeons are dramatically over-tuned from where they actually need to be. Tier 100 Nightmare Dungeons are excruciatingly difficult for most Classes to actually be able to get through.
