Bossfights in Blackrock Caverns + some trashmobs - Part Four of several (Unknown at this point).
Boss: Ascendant Lord Obsidius
1. The adds need to "swapped" from DPS to DPS, as they will cast some damage and make you pretty much unhealable - do NOT TANK THEM!
They're basically immortal at the beginning.
2. DPS Obsidius as much as possible, he'll swap places with one of his "Shadows" a few times during the encounter (This is basically how you kill the adds)
3. Errr..... Keep the adds occupied XD