Originally Posted by
myhv
Amusing from what you have said you are raiding 10 mans. Since you got pally I can assume as well that he's on tank keeping duty as well as druid (I hope you are using the "easy" strategy of having one tank eat brakes and other double attacks). When I do 10 mans I always ask to be allowed to stay on the raid healing, since as holy it's really mana intense keeping tanks up.
Anyway, on Chimeron I don't cast anything on the tanks except heals to extend chakra state when everyone is toped of. Since I'm on the raid that means I have to bring 2 persons above 10k every 3-5 secs (when boss spits on them), so I stay in heal chakra most of the time since it's holy word can bring one person above 10k in 1 GCD and save the other one with flash heal. It's mana intense if you are not careful. We also use raid heals during system failure to top ppl of faster. We try to have at least 3 available, since we usually hit phase 2 before 4th one. During failure I swap to AoE chakra if I have CD and just spam CoH/PoH till people are toped off and usually stop healing 'till massacre to save mana. And on massacres it usually takes one PoH to bring a group above 10k, and than I help with the second group with CoH and flash heals.
Alos, don't pop both mana CD's at the same time, just use fiend when you are at 60 or 70% and use hymn when everyone is toped off during failure phase. IF you are still struggling with mana, consider getting some concentration pots and use it during other stack.
Generally it's rather fun and easy fight when you get used to it.