As some of you know, patch 2.4 has been on the PTR for a week or two now. Some of the changes have caused quite an uproar amongst the Shaman community. Below, I have listed the changes that are most relevant to shamans:

General

• Characters will now retain talented spell ranks so when they retalent they do not have to relearn the spells from trainers.
• Spell Haste: Spell haste now reduces the global cooldown on spells, down to a minimum of 1 second. This change does not apply to melee and ranged abilities.

Shaman

• Call of Thunder: (Rank 5) now gives 5% critical strike chance.
• Earth Shield: Mana cost reduced roughly in half, and charges reduced from 10 to 6.
• Elemental Focus: This buff will no longer be removed when Shamanistic Focus is triggered.
• Ghost Wolf: Cast time reduced to 2 seconds, down from 3.
• Healing Grace: This talent now reduces the chance your spells will be dispelled by 10/20/30%.The resistance to being dispelled modifier from this talent now applies correctly to Water Breathing.
• Nature�s Swiftness and Elemental Mastery now share a 10 second cooldown.
• Rockbiter Weapon: Tooltip and error messages have been adjusted slightly.
• Stormstrike has a new icon.
• Totem timer icons will now show up under your player portrait when you cast totem spells. Right-clicking a totem timer icon will destroy that totem.
• Tremor Totem now pulses every 3 seconds, down from 4.
• The Shaman spell Fire Nova Totem will no longer sometimes detonate without doing any damage.

Undocumented Changes

• Shamanistic Rage is now a physical buff instead of magical - it can no longer be dispelled!

Item Changes

Totems
[Totem of Living Water] - this now reduces base mana cost, instead of just mana cost.
[Totem of the Pulsing Earth] - Reduces the mana cost of Lightning Bolt by 27, instead of 25.

Weapons
[Gladiator's War Staff] - the weapon speed has been reduced to 2.00. Damage range lowered to 89-186 to maintain the same DPS.
[Merciless Gladiator's War Staff] - the weapon speed has been reduced to 2.00. Damage range lowered to 90-193 to maintain the same DPS.
[Vengeful Gladiator's Staff] - the weapon speed has been reduced to 2.00. Damage range lowered to 90-199 to maintain the same DPS.
[Vengeful Gladiator's Battle Staff] - the weapon speed has been reduced to 2.00. Damage range lowered to 90-199 to maintain the same DPS.

Enchants
[Greater Inscription of Faith] - now adds +11 spell damage in addition to other effects.