I have seen these around numerous time, but never been able to kill them. Even as a Ranger at level 40 when they are Green they can be very tough. They ARE linked togethor so you will get 2 no matter what. On top of that they heal each other very effectively. I knocked one down to 8% one heal from his buddy and he was back to 60%. They also hit quite hard. My suggestion is that unless your and a class that can attack multiple targets or have some sort of CC i would stay away from them.
Edited, Thu Aug 25 02:54:39 2005