Led by Estoni Vaelastrasz the Corrupt is an interesting boss that buffs the raid to basicly recover all mana/rage/energy ect every second for 3 miniuts meaning you wont run out. the thing is, in return he turns into an insanly intensive boss, still one of the most intensive bosses. (this was done during WotLK, i may be wrong now) Great boss. great group … World of warcraft Raid Nafarian black wing lair attack kill dragon dragonforce raid leader estoni instance Horde Vaelastrasz the Corrupt BWL …