Universal Shaman Abilities: Make use of those totems folks. Just use some common sense; you aren't locked into one set of totems. Keep in mind that PvP is very dynamic and that you may need dekaron Gold to reset your totems accordingly.

Don't be shy with those Earth and Fire Elementals. Letting those bad boys loose adds a few more targets into the mix. This will allow for some additional damage while the Shaman can focus on either offensive or defensive spell casting.

The following are the most widely agreed upon useful PvP tools of a Shaman:

Bloodlust or Heroism: Increases melee, ranged, and spell casting speed by 30% for all party and raid members. Lasts 40 sec, this ability gives the Shaman a great tool for burst DPS, although it can only be used every 10 minutes because the player or players will be sated.

Grounding Totem: Totem that will redirect one harmful spell cast on a nearby party member to itself, destroying the totem. Will not redirect area of effect spells, this totem is an outstanding PvP totem since its main purpose is to "eat" one single-target spell.

Of course if you are in combat with all exclusive melee combatants, its usage becomes a bit limited.