So I did a +8 Skittering Breach (the Dark Realm version) just now, and right next to the final checkpoint stone, there were three Underpin’s Explosive Ally mobs next to a gold pile.
Pulling them resulted in them immediately going invisible, but yet still hitting me for millions of damage despite me being a bear with Ironfur up, dealing over 5,000,000 damage.
I died and then waited 5 seconds or so and then respawned and I was immediately taking damage again as apparently the mobs were still hanging around and re-aggro’d immediately.
I tried waiting 10 seconds and they killed me immediately again.
Then I tried just sitting there for a minute until I saw all 3 of them go back to their spawns.
I was able to eventually kill them, but only by running large circles around in the previous hallway spamming regen and iron fur and grabbing potions.
I was spamming AoEs, I don’t know if I was actually hitting anything but apparently Brann was able to shoot them and the mechanized dinos were able to hit them for some odd reason and eventually all 3 died.
The placement of these mobs really needs looked at, seems rather cheap to put them right next to one of those stupid darkness totems AND within aggro range of the respawn stone.