So my guild has spent a couple of days on this boss, which is quite a lot of us because we normally can get kills within 1 night. But for some reason this boss has given us trouble. Enrage isn't an issue, the couple of attempts we were very close to killing it was about 8 minutes into the fight. Our main problem seems to be the Light Spectrum phases. They seem to sometimes last too long, the raid damage is high and if a healer gets the red cone it's usually a wipe for us since we 2 heal it and our heals just suffer too much.
Does anyone have any tips on how they deal with the light phases?
Raid Comp if it matters:
Unholy DK (OS)