Blackwing Descent is a raid in the World of Warcraft game. The minimum level for this dungeon is 85. The location of the entrance to Blackwing Descent is in the Searing Gorge zone on the continent of Eastern Kingdoms. The instance was released in the Cataclysm expansion. The raid contains 6 bosses. The end boss of Blackwing Descent is Nefarian.
Blackwing Descent is a Cataclysm raid where the entrance to the encounter is high up on a ledge on the outside of the Blackrock Mountain in Searing Gorge. If you have played the original Blackwing Lair, you will recognise that the end of that raid is the entrance of this raid.
The raid bosses drop 359 on normal and 372 level items on Heroic. It drops the same level loot as The Bastion of Twilight and Throne of the Four Winds raids. The final boss is Nefarian and his daughter Onyxia who we have both encountered before in the game.