Font of Elune
Throughout the fight the floor gradually shifts from light to dark and then back. You get a stacking debuff as you stand on one side that either increases arcane (Lunar Suffusion/Light) or shadow (Umbra Suffusion/Dark) damage taken by 3% per stack. Moving from one side to the other clears your current stack and begins stacking the other type, but you personally take 150,000 shadow (Astral Purge) every time you switch sides.
Astral Purge was taken out of the dungeon journal for pre-Mythic, so might not happen.
Spoiler: Font of EluneShow
Stage One: The Huntress
In this stage the raid fights Huntress Kasparian, while her two untargetable allies run around casting.
- Moon Glaive (TANK)
Huntress throws a glaive at her target which bounces to two more, dealing 14.7 million physical total. The first target (main tank) hit gets a debuff (Discorporate) which decreases healing and absorbs by 75%. Tanks should stack to make sure they are definitely hit. Tank swap on this and affected tank goes and clears.
Spoiler: Moon GlaiveShow
- Twilight Glaive
Marks a target then throws a glaive which returns to the caster at them, dealing 2.5 million shadow to anyone hit. A potential strategy is to just have the person targeted run right in front of the Huntress.
Spoiler: Twilight GlaiveShow
Captain Yathae Moonstrike
- Incorporeal Shot
Aims at a target, then deals 57.8 million shadow after 4 seconds. Players can stand between the target and the Captain to split the damage. As many people should get in this as possible.
Spoiler: Incorporeal ShotShow
- Twilight Volley
A circle appears and arrows rain down in it, dealing 811,000 shadow every 1.5 seconds. Don't stand in.
Spoiler: Twilight VolleyShow
- Shadow Shot
Basic 1.3 million shadow to a random person.
- Embrace of the Eclipse
Places an 80 million damage absorption shield on the active boss as well as a 3 million healing absorption shield on the entire raid. After 12 seconds, any shield not damaged/healed through will have its remaining health redirected against the entire raid.
Spoiler: Embrace of the EclipseShow
- Moon Burn
Debuff placed on a few random players that deals 1 million every 2 seconds for 30 seconds. Move to the other type of floor to clear the debuff.
Spoiler: Moon BurnShow
- Lunar Strike
Basic 1.3 million arcane to a random person.