Wow this fight looks like tons of fun...
This one is all about clicking on portals to attune yourself to correct "color" and catching the balls of your color before they hit the boss.
More details to follow.... This can be pretty confusing on the first read through, so I'll do my best to keep it simple.
There will be 4 portals around the room at each of the small points of the star on the floor. 2 Light & 2 Dark at opposite corners.
The raid will split equally in 2 to deal with each mob.
The mobs should be tanked on top of a portal with THEIR color.
The team on each boss should be the opposite color.
e.g. If you are assigned to Fjola, you should have the Dark Essence.
This will be your "Normal" state. Unfortunately.... you can't stay that way all the time.
Every 40 seconds or so one of the bosses will use an ability. They can either cast a Vortex or a Shield.
If they begin to cast Vortex, EVERYONE needs to switch to the color of the boss that is casting.
Once the cast is done, switch back to what you were and move the boss back into position if needed.
If they cast a Shield, they will immediately begin casting a HEAL. The Shield must be brought down, and the mob then needs to be interrupted.
ALL DPS should switch to the OPPOSITE color of the boss with the shield and dps the shield.
Once the Heal is interrupted, go back to whatever color you were.One other thing....
Throughout the fight there will be many purple and white balls floating around. These are the Concentrated Darkness and Concentrated Light. They spawn at the edges of the coliseum and float around moving towards the center. If they come in contact with a player they will cast Unleashed Darkness/Light (hitting players within 6 yards) and despawn. If you currently have the same Essence as the Concentrated Light/Darkness you will gain several stacks of Powering Up (6-8) and possibly gain Surge of Speed. If you are the opposite Essence you will take 7800 to 8200 damage.
They have a shared health pool, so no messing with timing the kills or other such nonsense.
OMG this is funny... http://docs.google.com/present/view?id=0AUjV3v8AMxlMZGN4NWdzNHBfMzFobjJtNGRjeg&hl=en