Are they all non-aggro? Do they link? That’s a lot of mobs!
Yes they all link, it's very crowded and dangerous if you get a lot on you. Pullers are going to need to be careful. The cool thing is that I'm killing them alright on DRK with just trust buffs (no Corsair as I'm using a tank for safety), and I'm not even using food.
With proper party buffs and food, it should make chaining pretty easy. If the helm beetle camp is taken, you wouldn't be able to focus on just one type of mob though, which brings some variety to master levels.
At this point I see six possible camps for master levels:
1) Ra'Kaznar Skeletons for blunt heavy groups. Got to watch out for blood aggro.
2) Ra'Kaznar Floating Skulls for mixed damage groups. Need to silence them unless you can kill on pop.
3) Ra'Kaznar Poxhounds for slashing heavy groups. Need to build up resistance to paralyze and there's only one good camp, which is useless if a party is already there.
4) Empty Apex mobs in the crags. They have different elemental weaknesses which makes chaining slightly harder, but they aren't a bother (do little damage and no enfeebles) and camps will always be available.
5) Crawler's Nest Helm Beetles down in F9, which could be like Apex Crabs in Dho Gates for master levels. Wouldn't be surprised if RMT end up there at some point.
6) Find a random hole around the big room and pull whatever you can get hold of, preferably avoiding scorpions. Funguars don't seem too bad, but enfeebles could get annoying. Flies and beetles preferred.