i myself had difficulty with this quest (with a lvl 51 bird) but i figured it out.okay so go tinto the room attack the golem soon you will notice the rocks around you start the get an orb around them.

red orb = death
blue orb= survival

run to the rock with a blue orb around it the rest of the rocks get a mettelic shock wave underneath them and instant kill (sort of like gurgox in ao3)
then continue this method untill boss is dead.