does he have a spell that casts to heal(and exempt when hes in the water) or is it just heal 24/7 when not in water?
Nice information Aceshot. I have updated the post. If you recall anymore information don't hesitate to jot it down. =)
The adds also have an AoE, arcane, that if stacks, one shots the raid and a co-op strike ability if they attack Yael's target.
Named, 2 named adds, and some random other mobs.
You have to kill all the other stuff before you can kill Yael.
Yael heals when in Water.
The 2 named adds swap a damage immunity so you can only damage one at a time. Every so often one ports to the center and there are 2 curses. One Curse you cure, the second lands like a second later, and that one can't be cured. That one needs to get close to the named add that ported to the center of the island. If they fail that you die. Yael spawns 2 adds periodically, I want to say one of them heals the other, and hit rates on one suck ass.
Once you get all the stuff down and get to just Yael he starts uncurable charming one of the MT healers. If you happen to kill him while a healer is charmed he heals to 100%.
Information on this mob would be appreciated to complete the database. =)