This guide will assume you are familiar with the Heroic version of the fight and expand on how the fight changes in Mythic difficulty. If you are not familiar with this encounter, check out our heroic guide by clicking the button below.
Mythic Fetid has multiple changes that alter how you handle the fight in general. From a healer perspective, there is only one new mechanic to worry about which is the splashing of Putrid Paroxysm and Malodorous Miasma which applies a stack of either Malodorous Miasma or Putrid Paroxysm (MM if no debuff present, or if MM is present, and PP only if PP is present on the splash recipient). Malodorous Miasma has a small splash range while Putrid Paroxysm has a very large splash range. Counter this by having your raid spread out around the room equally spaced with direct travel paths for tanks to avoid getting hit by anyone’s debuffs.
Suggested Talents
Due to the spread nature of the encounter, you will want to take full single target talents for Mythic Fetid Devourer. You can consider taking APT to potentially save someone stuck in a Rotting Regurgitation. If you find yourself not needing a lot of tank healing, look to take Echo over ES.