Pierk

Complete Ruby Life Pools at Mythic Level 10 or higher, within the time limit, during Midnight Season 2.

Complete Kings' Rest at Mythic Level 10 or higher, within the time limit.

Defeat Ula'tek in The Venomous Abyss on Heroic difficulty or higher, during Midnight Season 2.

Defeat the following bosses within The Venomous Abyss.

Defeat the following bosses on any difficulty.

Defeat the following bosses within The Venomous Abyss.

Defeat Nymrissa Wavecaller in The Tidebound Grotto on Heroic difficulty.

Complete Temple of Sethraliss at Mythic Level 10 or higher, within the time limit.

Defeat the Assembly of Iron in Ulduar with Runemaster Molgeim as the last member alive.

Defeat Yogg-Saron in Ulduar within 7 minutes.

Defeat Yogg-Saron in Ulduar without any raid member going insane.

Defeat Yogg-Saron in Ulduar without the assistance of any Keepers.

Defeat Yogg-Saron in Ulduar with the assistance of one or fewer Keepers.

Defeat Yogg-Saron in Ulduar with the assistance of two or fewer Keepers.

Defeat Yogg-Saron in Ulduar with the assistance of three or fewer Keepers.

Defeat Mimiron in Ulduar after activating his Self-Destruct mechanism.

Defeat Mimiron in Ulduar without anyone in the raid being hit by the following:

Defeat Freya in Ulduar while leaving all 3 Elders alive.

Defeat Freya in Ulduar while leaving at least 2 Elders alive.