There is special good way for Exorcism Nerf, because of you just to be attacked, but as soon as you are full of cabal Gold that you can buy medicine at any time and you will get recovered very soon after you are attacked. Of course, you are able to healing your health or running away. However, the treatment group must be fierce brush.
Notice:
1. Do not stand together, 2-5 yards away from people!
2. MS must be look at the location of dark magic. The first time to disperse as it is appears.
So far these are abilities you have to have.
Negative energy: Black beam frequently used on multiple targets. (1k average dmg)
Darkness: This ability creates a large void zone which deals around 3000 shadow damage per sec, it also spawns several Dark Fiends.
Call Shadowsword Berseker (melee dmg) and Shadowsword Fury Mage (spell dmg)
Summon Void sentinel: Large voidwalker that hits very hard (8-9k), also has a Shadow Pulse ability (AoE) which deals about 3-4k shadow damage. 8 Void Spawn appears upon a Void sentinel death.