Originally Posted by
Sheeana
Like Brio said your performance will by far depend on how good or bad the other healers are. Shamans shine at keeping the raid alive but are a lot less powerful when noone drops low. That said, I have a few pointers on what I think you could do differently.
1) You should value Critical Strike and Mastery a lot higher.
I have around 5% more Crit and around 23% more Mastery with the same item level as you. You may also want to get the Karazhan cloak (+10% on critical heals).
2) I personally prefer Ascendance as my last tier talent.
Again your job is to keep the raid alive so aim for talents and cooldowns that help you do this.
Finally don't be afraid to use some cooldowns. Shamans have some really strong cooldowns for getting the raid back up. Others healers may be able to do the same but it's often at a lot higher mana cost.