Blackwing Lair - Boss Guide[]
Blackwing Lair is a 6 Encounter raid ending with the notorious Lord Victor Nefarius (Nefarian) <Lord of Blackrock>.
All bosses in Blackwing Lair drop pieces of the Tier 2 Raid Set, excluding the leg and head slots, which drop from Ragnaros and Onyxia respectively.
Vaelstrasz the Corrupt[]
Vaelstrasz the Corrupt is the 2nd of 6 encounters in Blackwing Lair located in the Shadow Wing Lair.
When first engaging Vaelastrasz, he will be friendly, someone needs to talk with the Red Dragon to begin the fight. This will begin a roleplay sequence and the Boss will become hostile at the end.
Vaelastrasz starts the fight with 30% health left.
Fighting Vaelastrasz[]
Positioning[]
The Main Tank should position themselves with their back towards the Throne, at the head of the Vaelstrasz. No DPS or Healers should not be in front or behind the Boss, due to the Boss using Cleave and Tail Sweep. Everyone can be stacked on one side of the boss Normal - Mythic as the Boss will die quickly, making healing DPS with Burning Adrenaline easier. On Ascended the raid must evenly split on both sides of the Boss to better soak orbs and allow for easier AoE healing. The Off-Tank should soak the orbs behind the boss.
Corruption[]
Orbs will spawn from edges of the room, slowly moving towards the boss. Soaking Orbs will cause a stacking debuff, Corruption, to be applied, causing 10% increased damage taken. If Corruption reaches the Boss, Vaelstrasz will inflict 10% more damage per stack.
Flamebreath[]
Vaelastrasz will cast Flame Breath which causes damage in a cone which applies a DOT stacking up to 5 times.
Burning Adrenaline[]
DPS and Tanks gain Burning Adrenaline during the fight: Critical Strike and Haste is increased by 750. Threat reduced by 100%. Inflicts 1% max health damage every second, increasing in damage as time goes on. Deals damage to nearby allies when removed. This can be cleansed with either a dispel or soaking an Orb.
Concentration & Essence of the Red[]
Vaelastrasz will cast Concentration, causing him to take 90% reduced damage during the cast, DPS should refrain from using Cooldowns until after the cast is completed. Essence of the Red is applied to every Raid member after the cast, increasing healing and damage done by 10%, this will continue to stack over the duration of the fight.
Thank you to Yo and Sanaka for help writing this guide.