-Kill the adds that spawn in the back of the room before they reach the boss. This is the primary mechanic of the fight, really.
-Tank swap on each hulking terror, or if a tank gets Shredded Armor (which can be avoided with active mitigation)
-Player targeted by Heart Seeker must move to the designated location AS SOON AS POSSIBLE.
-Run away during Death Throes and keep running.
-2 players at a time into the Vision of Death realm (like the third Siege boss), probably try to keep a healer with the buff at all times, send two DPS in so long as there is still a healer out with the buff.