Since we still don’t have class forums for Classic, I’m posting here.
While leveling I have been using an Enhancement build, and am going into Elemental as a secondary tree now. I have read some talent guides, in particular Aryxymaraki’s excellent old guide from vanilla days (which you can see at https://web.archive.org/web/20060718121746/http://forums.worldofwarcraft.com/thread.aspx?fn=wow-shaman&t=36840&p=1&tmp=1#post36840.)
But good as these guides are, most of their talent evaluations assume the reader’s primary focus is on the tree containing that talent. Since I am taking Elemental secondary to Enhancement, I would like to know how Elemental talents best complement Enhancement.
Enhancement
I have 31 points in Enhancement:
https://classic.wowhead.com/talent-calc/shaman/-5005230105003151
I took what I consider to be the essentials, and not taking any of the damage-reduction talents, which, from everything I have been told, aren’t actually that useful. I am interested in putting 2 more points into Enhancing Totems; in parties I find I use both Strength of Earth and Grace of Air totems a lot if there’s any other melee, and I also use them solo.
Elemental
For elemental I already have 5 points in Convection to help with mana burn (I go empty so fast!). My next choice is maxing Concussion or putting 3 points into Call of Flame. I’m inclined to go with Concussion. (Skipping Earth’s Grasp and Elemental Warding.)
In tier 3 I expect to take Elemental Focus and Reverberation. I’m not a fan of proc-based abilities, but anything to help with mana burn is welcome. Reverberation is more my kinda thing, a reliable reduction in cooldown on my shocks (leading to more mana burn, I know 
).
To cap off Elemental I could pick any of Improved Fire Totems, or—assuming I don’t take Enhancing Totems—maxed Eye of the Storm or Elemental Devastation.
Improved Fire Totems seems nice, especially for dealing with packs. I’ve definitely discovered there’s no point using either Fire Nova or Magma Totem unless I’ve got a good amount of aggro on every mob around me first. I’m not inclined to put points there and find out the talent doesn’t actually help, however.
Eye of the Storm seems to be more for Elemental-primary builds: I don’t expect to be casting Lightning Bolt while meleeing, because I will always be getting pounded on—but on the other hand, sometimes I need to get off a clutch heal while being pounded on.
Aryxymaraki criticized Elemental Devastation as being essentially MAD (to borrow a term from D&D): an Elemental shaman is primarily a caster, not a melee fighter, and this talent kind of requires you be both. However, as an Enhancement-primary shaman, I still cast shocks, and I often pull with a lightning bolt. So it seems this could be a good fit for my combat style, even though it depends on procs. (I’ve also been told I can spam a rank 1 shock for low mana burn just to fish for procs on my melee swings, and Reverberation synergizes well with that approach, too.)
