With the advent of 3.1 and a new arsenal of PvP abilities at our disposal, I think it is no surprise that many of us are now monitoring PvP specs with greater interest.
Here is the spec I arrived at after careful contemplation in comparisons of talents for MY own personal playstyle:
Mexullus' PvP Spec
Generally, I prioritize the following: burst damage & roots/stuns > escape/damage mitigation talents > sustained damage talents > mana conservation talents. I will describe here in detail my reasons in selecting these talents:
Elemental (arranged into tiers)
1. Concussion always before Convection, always. Damage >> mana conservation.
2. Call of Flame and Elemental Warding in the next tier, needless to say Elemental Devastation is worthless.
3. Elemental Focus and Elemental Fury, I could see some with a Shock-oriented playstyle taking Reverberation, but I myself didn't see how 5 talent points to reduce cooldowns on shocks outweigh the other talents in this or following tiers.
4. Improved Fire Nova Totem and Eye of the Storm. The stun and additional burst potential from fire nova totem is too good to pass up. Spell pushback can severely limit elemental shaman output so it is wise to reduce it as much as possible.
5. Elemental Reach and Call of Thunder. The greater the area of reach between you and your opponent, the more damage you will be able to do in most movement scenarios, period. Call of Thunder is an obvious must. Again no need for Unrelenting Storm, mana conservation is not a priority.
6. Lightning Mastery with 1/3 Elemental Precision. Lightning Mastery is another no-brainer, must-have. 1 point into Elemental Precision because we need to get to the next tier, the 1% is nice and it beats 1 point into any other available talents.
7. Elemental Mastery and Storm, Earth and Fire. Obvious no-brainers. The 100% root from earthbind is a must-have.
8. Booming Echoes, Elemental Oath, and Lightning Overload. As mentioned earlier, Booming Echoes is a solid PvE and PvP talent. It gets my vote for PvP because, as said earlier, if we get locked out of our Nature spell tree, it is advantageous to have harder-hitting and more frequent flame/frost shocks. Elemental Oath is a damage increase of 10% with Clearcasting with 5% crit on top of that, worth taking. Lightning Overload is arguable, however, I reason that if 20% of the time when you cast either LB or CL, you get a 50% dmg increase on that spell, that's enough burst to really throw someone off and could be the difference in a win-loss scenario. The potential for burst damage is a big positive for me.
9. Astral Shift, Totem of Wrath, Lava Flows. This is the best damage mitigation talent that shamans have in PvP. It is essentially 30% less damage from rogues. Totem of Wrath is debatable, because Fire Nova totem takes precedence and even Searing or Magma totems when kiting, but I like to have it in my arsenal for use in certain situations. Lava Flows gets a big applause for being the talent where enemies now must question dispelling it. Whether they do or don't, it's still a win-win situation for shamans.
10. Shamanism. Enough said.
11. Thunderstorm. Perhaps the best spell in the Elemental Shaman repertoire with tremendous utility and now useable while stunned.
Enhancement
1. Earth's Grasp and 3/5 Ancestral Knowledge. Earth's Grasp is the new must-have. The roots can take a rogue out of stealth, the range is magnificent, and boosting Stoneclaw totem now that the glyph is available mandates taking this talent. Ancestral knowledge, because again mana is not a priority for me in PvP.
2. Thundering Strikes and Improved Ghost Wolf. I've seen many builds that don't max thundering strikes and I read above that crit is not what you want to stack in PvP. While resilience has considerably nerfed the impact of critical strikes, I still see this talent as an addition to burst potential and I think it warrants taking over some of the other talents in this tree. Improved Ghost Wolf is my hit and run move. It gives me a huge advantage to increasing or decreasing the gap between me and other players.
3. Elemental Weapons. It adds more damage, better than other talents in this tree.
4. 1/5 Toughness. My only regret is that I didn't have more points to put into this talent, which would warrant me pulling points out of deep elemental to get.