Phase 3 Elemental Shaman for BT/Hyjal. Skyshatter Regalia with spell-power offsets (Leggings of Channeled Elements, Flashfire Girdle). Your raid value is Totem of Wrath + Bloodlust / Heroism — personal DPS is LB / LvB fishing once hit-capped. Zhar'doom and Skull of Gul'dan are the shared caster chase items.
Drop totems on pull, keep Flame Shock up for LB clears, and never let Bloodlust sit through a burn phase. Chain Lightning for stacked adds; Lightning Bolt otherwise.
✓ Strengths
✓
Totem of Wrath is a raid-wide DPS buff
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Bloodlust / Heroism wins fights
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Skyshatter 4-piece is a clean Elemental spike
✕ Weaknesses
✕
Personal DPS trails Mage/Lock on pure patchwerk
✕
Totem twisting / placement mistakes are free damage loss
✕
Shares caster weapons and trinkets with the whole ranged group