I went back to this old raid zone to get the class debuff spell that's useful in the new Kael zones. It was easy enough to just 1-shot all the other nameds, but I can't seem to kill this encounter. All the walk-throughs I've found say to take their health down evenly, and kill the adds that spawn every 25%, but it doesn't seem to be working that way. I even took off all my gear so I could take them down more slowly and control the pace better, but they're constantly healing to full no matter what I do. Is there some trick I'm missing that's not in the write-ups on the wiki or Zam?