Yup. Dark light is more than sufficient for every encounter in the zone, more gear just makes attempts more consistent. I'm asking this because I'm willing to bet that if phase 3 didn't randomly kill off raid members on 80%+ of attempts and waste 8 minutes of your time every pull that the encounter would have been killed already. I honestly don't believe that anyone has found a viable repeatable strategy. It is morale and soul crushing to throw yourself at a boss and get one clean attempt at phase 4 and beyond for every 30+ minutes of progress because of randomly unavoidable mechanics.