Cataclysm - Nefarian and Onyxia Boss Strategy Guide Blackwing Descent

Music: One Winged Angel - Advent Version Jesse (jessecox.com) from omfgcata brings you a strategy guide for the Nefarian and Onyxia boss encounter in Blackwing Descent raid in world of warcraft cataclysm. World of Warcraft: Cataclysm is the third expansion for MMORPG World of Warcraft, following Wrath of the Lich King. This is being played on PC.