After you have finished all three missions around Augury Rock(Dunes of Despair, Thirsty River, and Elona Reach), you have one final mission. This mission is at Augury rock. Suggested skills for this would be any health sacraficing skills you can find that they could use and any life steal skill. After you enter the Mesa by talking to Great Ritual Priest Zahmut, There are three ghosts. Go past them and you will see a circle made of white hieroglyphics( possiblt Cuneiform?)walk through this and you will gain "Divine Fire". You will have this for this entire mission. Well while you have this enchantment, step on the rocks ahead that also have white hieroglyphics(these writings are muc bigger and only one symbol per stone)they will glow yellow as you step on them. then there is a movie sequence and you appear right in front of the doppleangar. Don't use the sacrafice skills, constantly spam your life steal skill. He of course will only have health sacraficing skills(except the life steal skill) so he will basically kill himself. This method makes it extremely easy to get bonus. good luck and I hope this helped greatly
