Those thurgb mobs have spicy mr. A bard can solo charm pair-kill them by stacking mr debuffs and swapping with one you charm, but if you just try to charm and recharm one against Dain I think you're going to have a bad time.

just charm one of the front guards

Let the enchanters charm on dain and enjoy your 5-10 minute AFK pumping clerics.

i agree, it was more cause they used that as reference as a spot. they def can if they really wanted to.