/sign!

What we do is have the tanks pick up all the Guardians, no one touches them, and the tank has to be careful not to die due to the shields. The DPS takes down any watchers that spawn, and we CC the big green guys! it takes us about 9 turns to solve the puzzle completely and then we just die and come back and loot. Their are usually way to many guardians up so this is a much quicker way of getting the adds to despawn! Hope this helps!