Nasty Dungeon Mechanics

[Apatheist]

The sludges are pretty simple to deal with on a ranged group. As melee you just have to separate one at a time and kill it while kiting the rest with a healer. It's not too painful but still time consuming. Fortunately you only have to deal with one group of them.

The deathwalkers aren't an issue. Just keep your healer at a distance and /follow with your group whenever one spawns. They move very slowly. The main thing about this room is being careful not to be feared into another pack. Pull with a ranged attack and then fight the mobs near the entrance and it shouldn't be an issue.

I honestly can't think of any mechanics in vanilla dungeons that make boxing particularly challenging provided you're not severely undergeared/leveled. There are some debuffs that can be annoying if your comp is unable to remove diseases/curses but nothing that will prevent you from completing the dungeon.