Heroic: Chimaeron
Defeat Chimaeron in Blackwing Descent on Heroic Difficulty.
10
The Abyss Will Gaze Back Into You
Defeat Cho'gall in the Bastion of Twilight before any raid member earns more than 30% Corrupted Blood.
10
Heroic: Magmaw
Defeat Magmaw in Blackwing Descent on Heroic Difficulty.
10
Aberrant Behavior
Kill 12 Aberrations within 10 seconds on the Maloriak encounter in Blackwing Descent and then defeat Maloriak.
10
The Only Escape
Defeat Halfus Wyrmbreaker after defeating two drakes within 10 seconds of each other. The Emerald Whelp pack counts as one drake for this purpose.
10
Silence is Golden
Defeat Atramedes in Blackwing Descent without any raid member's sound bar going over 50%.
10
Heroic: Atramedes
Defeat Atramedes in Blackwing Descent on Heroic Difficulty.
10
Heroic: Halfus Wyrmbreaker
Defeat Halfus Wyrmbreaker in the Bastion of Twilight on Heroic Difficulty.
10
Parasite Evening
Defeat Magmaw in Blackwing Descent without anyone in the raid becoming infected with a parasite.
10
Blackwing Descent
Defeat the bosses in Blackwing Descent.
10
Throne of the Four Winds
Defeat the bosses in Throne of the Four Winds.
10
The Bastion of Twilight
Defeat the bosses in the Bastion of Twilight.
10
Full of Sound and Fury
Defeat Chimaeron in Blackwing Descent with no more than 2 raid member deaths.
10