I dunno, I stayed inside the circle the whole time, I didn't bother healing the earth elementals and decided to take the hit when he did his sonic boom (only took about 50% of my health away) chain healed after.I switched windows to who ever got Touch of Murmur and ran them to the other side of the circle and forgot about them becuase they're silenced for a while afterwards, and murmur was already at 5%