Tanks face the boss slightly off to the side to avoid hitting the raid with breath cone, but not so far as to spawn adds on the upper levels.
The tanks swap after every breath.
The Helya tank will always get Taint of the Sea while the offtank will always get a Orb of Corruption.
The Grimelord and the Night Watch Mariner should be tanked separately. They should be kept near Gripping Tentacles for passive cleave.
One tank should always stay in range of the boss no matter what to avoid Corrosive Nova.
Plan cooldowns appropriately for Anchor Slam Icon Anchor Slam and Ghostly Rage.
Dispel Taint of the Sea.
Plan cooldowns appropriately for Bilewater Liquefaction and Fury of the Maw.
Heal players who have soaked Corrupted Axion recently to break the healing absorb.
Avoid getting hit by Helya's breaths if you are not the current tank.
If you are fixated by Rabid, bring the Decaying Minion into the designated stack point.
Avoid being hit by Orb of Corruption and Orb of Corrosion, and ensure they are kited correctly.
Information was sourced from Icy Veins on 26/02/2017
Bronzebeard (EU) - Kyalon | Druii | Tianii | Rinegi | Hellhunter | Medix | Draakii