Originally Posted by
Daetur
Trying to provide us with some logs of your attempts would be the most helpful, honestly.
Really, the only thing we can do with this information is to reiterate the general strategy for the fight, which I expect you know.
Personally, I have no experience with the Torrents of Ice, since my guild only ever kills the Green and Red heads.
It looks to me like one of your problems may be how melee heavy you are, which means you are getting a higher proportion of green bombs and Cinders in melee, which can be much harder to avoid or mitigate because of their position. That is probably adding extra strain on your healers.
Without logs, there's no way to tell you if any of your raiders are doing something wrong, taking an unusual amount of damage from something, not using their survivability cooldowns, not using raid cooldowns, et cetera.
Next time you raid, run World of Logs and then have us look at it, we'll be able to be much more helpful.