Death Knight (Forums / Cataclysm Talent Calculator / Beta Skills/Talents)
Blood

• Blood Strike damage is increased by 12.5% for each of your diseases on the target, up from 10%.
• Heart Strike now deals 120% weapon damage, up from 100%.
• Blood Boil base damage increased by 20%, from 297 to 357.
• Blood Presence now increases armor contribution by 30%, down from 60%.
• Death Strike now heals for 15% of the damage sustained, down from 25%.
• Crimson Scourge now has a 5/10% chance to proc from melee attacks on a target infected with your Blood Plague. (Old - 50/100% chance to proc from Plague Strike)
• Will of the Necropolis no longer regenerates a Blood Rune but makes your next Rune Tap free instead.

Frost

• Runic Empowerment wording changed to add "successfully" use Death Coil, Frost Strike, or Rune Strike.
• Rune Strike now deals 180% weapon damage, up from 150%.
• Might of the Frozen Wastes now also has a 4/8/12% chance to proc from your melee attacks. 15/30/45% chance to proc from auto attacks remain the same.
• Killing Machine no longer affects Icy Touch.

Unholy

• Scourge Strike now deals an additional 18% Physical damage done as Shadow Damage for each disease on your target. Up from 12%.
• Unholy Might now increases your Strength by 5%, down from 10%.
• Desecration now also affects Necrotic Strikes.

Druid (Forums / Cataclysm Talent Calculator / Beta Skills/Talents)
Balance

• Typhoon now deals nature damage to target in front of the caster within 30 yards.
• Shooting Stars now lasts 12 sec, up from 8 sec.
• Balance of Power now increases spell hit rating by an additional amount equal to 50/100% of any spirit gained from item or effects. (Old - Just 50/100% of your Spirit)

Feral

• (Mangle) Mangle now deals 300% normal damage, down from 360%. Additional damage reduced by 17%, from 1044 to 870.
• Thrash base damage has been reduced by 17%, from 243 to 202. Bleed effect base damage also reduced by 17%, from [ 7.8% of AP + 455 ] to [ 7.8% of AP + 379 ]
• Lacerate damage has been reduced by 17%, from [ 11.5% of AP + 295.99 ] damage + [ 0.038% of AP + 118.4 ] bleed over 15 sec to [ 9.58% of AP + 246.66 ] damage + [ 0.032% of AP + 98.65 ] bleed over 15 sec.
• Frenzied Regeneration now regenerates 0.15% of max health for each point of rage, down from 0.3%.
• Swipe base damage has been reduced by 17%, from 171 to 143.
• Maul now scales from 30% of Attack Power, down from 36%.
• Berserk no longer clears the effect of Fear or makes you immune to Fear for the duration.
• Pulverize now deals 100% weapon damage, down from 120%. Base additional damage reduced by 17%, from 541 to 450.
• Leader of the Pack now causes you to gain 8% of your maximum mana, up from 4%.
• Thick Hide now increases armor while in Bear Form by an additional 26/52/78%, up from 11/22/33%.

Restoration

• Omen of Clarity now procs from damage spells and attacks instead of proc from damage and healing spells.
• Rejuvenation now costs 16% of base mana, down from 26% of base mana.
• Nature's Bounty proc effect removed and replaced with a new effect - Increases the critical effect chance of your Regrowth spell by 20/40/60%. In addition, when you have Rejuvenation active on three or more targets, the cast time of your Nourish spell is reduced by 10/20/30%.
• Empowered Touch now increases direct healing done by Healing Touch, Regrowth, and Nourish. (Old - Increased healing by Healing Touch and Nourish only)

Hunter (Forums / Cataclysm Talent Calculator / Beta Skills/Talents)
Beast Mastery

• Kill Command now scales from 51.6% of Ranged Attack Power, up from 43%.

Marksmanship

• Kill Shot additional damage increased by 50%, from 362 to 543.
• Aimed Shot! now deals 102.5% ranged weapon damage, up from 95%.
• Chimera Shot base damage has been increased by 11%, from 973 to 1081.

Survival

• Into the Wilderness now increases Agility by 10%, down from 15%.

Mage (Forums / Cataclysm Talent Calculator / Beta Skills/Talents)
Arcane

• Arcane Brilliance now costs 26% of base mana, down from 31% of base mana.
• Counterspell no longer generates a high amount of threat.

Frost

• Ice Shards (Rank 2) effect now lasts 2 sec, up from 1.5 sec.

Paladin (Forums / Cataclysm Talent Calculator / Beta Skills/Talents)
Holy

• Divine Plea now gives you 12% of your total mana over 9 sec, up from 10% of your total mana over 15 sec.
• Light of Dawn base healing has been reduced by 40%, from 1008 - 1124 to 605 - 675.
• Tower of Radiance no longer affects Holy Light.

Protection

• Blessing of Kings now costs 19% of base mana, up from 6% of base mana.
• Shield of the Templar (Rank 1) now reduces the cooldown of Guardian of Ancient Kings by 40 sec, down from 45 sec. Other ranks unchanged.

Retribution

• Mastery: Hand of Light has been revamped - Your Templar's Verdict, Crusader Strike, and Divine Storm deal 20% additional damage as Holy damage. Each point of Mastery increases the damage by an additional 2.5%.
• Blessing of Might now costs 19% of base mana, up from 5% of base mana.
• Divine Purpose now has a 7/15% chance to cause your next Holy Power ability to consume no Holy Power and to cast as if 3 Holy Power were consumed. (Old - 20/40% chance to generate Holy Power)

Priest (Forums / Cataclysm Talent Calculator / Beta Skills/Talents)
Discipline

• Levitate now lasts 10 min, up from 2 min.
• Power Word: Fortitude now costs 22% of base mana, down from 69%.
• Power Word: Shield now scales from 87% of spell power, up from 41.8%. Base absorb increased by 110%, from 3906 to 8136. Now costs 25% of base mana, up from 19% of base mana.
• Focused Will now reduces all damage taken by 5/10%, up from 4/6%.
• Grace can now be active on multiple targets at a time.
• Strength of Soul now also rpocs from Greater Heal and Flash Heal.
• Pain Suppression no longer increases resistance to Dispel mechanics.
• Rapture now energizes you with 2/4/6% of your total mana, up from 1.5/2/2.5%.
• Atonement now affects a friendly party or raid target within 15 yards, up from 8 yards.
• Improved Power Word: Shield now also increase the damage absorbed by an additional 15/30% when Power Word: Shield is cast on yourself.

Holy

• Holy Word: Chastise now has a 30 sec cooldown, up from 25 sec.
• Chakra's state now last 1 min, up from 30 sec.
• Blessed Resilience now increases all healing received by 15/30%, up from 5/10%.
• Holy Concentration now increases mana regeneration by 15/30%, up from 10/20%.
• Surge of Light now also procs from Flash Heal and Greater Heal.

Shadow

• Shadow Protection now costs 22% of base mana, down from 62% of base mana.

Rogue (Forums / Cataclysm Talent Calculator / Beta Skills/Talents)
Combat

• Combat Readiness now lasts 20 sec, down from 30 sec. Now expires after 10 sec, up from 6 sec.
• Combat Potency now also affects Main Gauche attacks.
• Revealing Strike now increases effectiveness of your next offensive finishing move on the target by 35%, up from 20%.

Subtlety

• Smoke Bomb now lasts 5 sec, down from 10 sec.

Shaman (Forums / Cataclysm Talent Calculator / Beta Skills/Talents)
Just a few additions of Glyph in spell tooltips to properly reflect their effects when you use them. Nothing new.

Warlock (Forums / Cataclysm Talent Calculator / Beta Skills/Talents)
Affliction

• Drain Mana has been removed.
• Drain Life (Soulburn) base damage has been decreased by 13%, from 125 to 109.
• Curse of Exhaustion now reduces movement speed by 30%, down from 50%.

Demonology

• Inferno no longer increases the radius of Hellfire.

Destruction

• Shadow and Flame effect can now also proc from Incinerate.

Warrior (Forums / Cataclysm Talent Calculator / Beta Skills/Talents)
Arms

• Lambs to the Slaughter now stacks up to 3 times, lasts 15 seconds and affects Slam - Your Mortal Strike causes the Slaughter effect, which increases the damage of Execute, Overpower, Slam and Mortal Strike by 10%. Lasts 15 sec. Stacks up to 1/2/3 times.
• Juggernaut no longer increases the cooldown of Charge by 5 seconds and now makes Charge and Intercept share a cooldown instead. Now increases the duration of your Charge stun by 2 sec.

Fury

• Raging Blow now deals 80% weapon damage, down from 110%.