Managed to get this boss down to 30% before raid was called. Going at it again today. I played as disc yesterday, relied heavily on atonement healing due to increased healing via the latter. We ran this with 2 healers: holy pala and myself. The only problem we encountered was in phase 3 after running back in to boss during the burn phase. Divine Hymn would work wonders here for that part and was wondering if it's worth speccing holy over disc for this fight. So I'd appreciate to hear some suggestions.
What do you suggest also for this fight, mindbender of PW:Solace? The only chance I get to use solace is when trying to kill energy charges and the engine.