Originally Posted by
Afflictid
I am in a 10man guild, and I understand 10 and 25 are different. The way we do it is lust instantly in p1, we have the Ony tank tanking all the adds as well because when p2 starts, they all die grouped up. (By doing this we get a second lust at about 7%) So we burst down Ony and get right into p2.
Make sure most of the people you are assigned to heal are in the same groups, that way Prayer of Healing and Divine Aegis will stabilize people out a lot easier. Using PW:B right as everyone gets on the platform isn't a bad idea seeing as everyone will have the magma debuff. Keep PoM on CD for that phase and bubble/flash/binding heal people that really need it. Keep in mind that is the hardest healing portion of the fight, so don't worry about mana. After p2 ends you should be able to pop fiend and hymn of hope.
Another trick that helps me is that I use the other mana potions. I believe they're called potion of concentration? But they restore 22,000 mana instead of the normal 10k. You should be able to use one right after a crackle after stabilizing people's health.