How exactly should we phase him to the last phase? We have 4 healers, we kill 1st and 3rd add with the ring and 2nd and 4th are either immuned or done properly. When we were in one of the first tries we went to 45-55% HP of the boss, someone used the DPS ring accidentally but that made it seem possible to phase him with it before the add.
Now, since Bloodlust isn't used yet, and phase 3 might be messy, I wonder if it's best to use Bloodlust + ring + potion when the ring is up so one goes to the last phase cleanly and with some damage. But it might be a bad idea if none of the ring damage gets carried over to the last phase.
Then again I only saw that possibility on the first tries and with 1 or 2 DPSes dead so I wonder if the boss is normally pushed without any special DPS cooldowns on 4-healing strategies.