* Please take it easy on me, this is my first post of it's kind, and if anything sounds like it's from left field, attribute it to work fatigue.*
My problem:
In short, I'm having a hard time understanding how shaman will still be as viable a healing class in PvE as we have been in TBC. I am a huge fan of downranking for mana efficiency, and that is the problem I'm having. Currently I can keep from going oom just fine with normal use of mana pots, and trinket popping, and don't really need any extra group arrangements( i.e spriest) to be an effective healer during the vast majority of boss fights. But with the new abilites and high mana cost of existing abilities, I don't see how we're supposed to keep up without more regen, and we don't get regen increasing abilities in WOTLK.
Other than the change to elemental focus( 9pts in elemental tree) to include healing spells, there isn't a whole lot in the way of mana conserving or increasing abilities. And with the changes to our trees, cross tree specs just aren't as obvious. I can see that they are trying to make us more crit oriented like paladins, allowing our offensive spell crits to either proc abilities that would decrease our need to heal, or lower the cost of following spells. But these spells from my experience are just like windfury... not dependable. For instance : Ancestral Awakening. When fully talented it summons a spirit to heal the lowest hp friendly target around for 20% of the crit heal that proc'd the ability.
-So...I happen to get a 3k lhw crit, not absurd at all, and the spirit heals a friendly for 600hp.I'm not sure of the cooldown on the effect, and with talents like Blessing of the Eternals and even Tidal Force to increase our spell crit, it seems decent. But still we have not been crit based healers, and without geming for crit I don't see how we can possibly accrue an amount of crit good enough to really make this talent worth while.
Healing Tactics:
As a resto shaman, I find my usual healing assignments to be the raid or melee, where my chain heal is of the most use, while placing ES on a Tank, OT, or a caster (myself included) to aid against spell pushback effects. I've been a potion chugger since I stepped into 25man instances, using them whenever the cooldown was up unless I don't need to (less than 1k mana short of full). This along side downranking solved my problems, I could now survive longish fights while trapped in the melee group.
Alot of healers prefer to use max ranks and cancel wasted heals effectively to reduce mana consumption, a method that can be extremely effective to slow you on the road from pull to oom, but I find this to sometimes be undependable when taking into account lag and the method's of other healers. If the raid (normal shammy assignment) is doing fine and the tank is obviously in need of extra heals, I'll apply said heals as needed, but in most cases, if I'm not healing my assigned target, it puts extra stress on other healers and someone is going to pay (die) because of it.
My Conclusion
Ofcourse I have to take into account new gear in wotlk which may have more regen or int than it's TBC counterparts, and the vast amount that will be added to my mana pool by the time I hit 80, but along with more mana due to increased levels come increased ranks of our already mana hungry spells. So long story short, as far as I can see, we get more ways to spend mana on an already inefficient platform of heals(based on mana consumption per heal) and nearly nothing to improve regen( imp watershield did nothing for me).
Chainheal can rather easily be outdone my CoH, the only variable being our group setups whether the priest or shaman (or both) get grouped with the spriest/hunter. So with our mana at stake and our once "uber healing spell" being pretty marginal now, what will be the reason to need a resto shaman. Our group buffs are threatened my similar abilities of other classes. Will we be as useful in Wotlk for our abilities as we have been, or will it come down simply to who's the better healer. In either case I think I'm a proficient healer and will be alright personally, but at the same time I can already see being turned down because my spot was taken my a priest partnered with a ret pally.
After reading this post several times, I'm sure some things will be misconstrued, and some people may think I'm an idiot, but hey..this is theorycrafting right? Also, this is all based on my experience on the PTR, i'm not in beta, and maybe there are some things I don't know..actually...i'm sure of it.
I really would love people to weigh in on this, i see countless forum posts for other classes wotlk theorycrafting, but few for shaman.
*none of the logic of this post should be used against me in the court of hopeful app's :) *