Phase One:
-Spread out a bit
-Tank the Dominator Tentacles and avoid their Slam ability if not targeted by it.
-Tank the Nightmare Horror, and Swap at about 2 stacks. Probably cooldown on the second stack. Face AWAY from raid.
-Don't tank Corruptor Tentacles, but focus them down as second priority. If you get their Debuff, run the fuck away and drop your shit outside.
-Interrupt and kill Deathglare Tentacles as the first priority.
DPS:
*Can you interrupt frequently? Kill Deathglare Tentacles.
*Can you not interrupt frequently? Kill other things.
Kite the Ichors to the eye and kill them all at once, more or less. Don't be near them all when they die.
Phase Two:
-Finish off any adds (and blobs!), then go in the tree.
-Spread around the boss really really close to it.
-When you get the debuff, run to the outside wall and don't overlap the blast area.
-Face fuck the blob. Get out before the cast finishes.
Repeat.
Bloodlust on the second phase two.
We might do this one second instead of Elereth, depending on what our DPS output looks like on the first boss.