WoW Azerite Traits Stack - Check out how it works

Artifact weapons in Legion served a double purpose: not only they were an amazing piece of a lore-heavy equipment but also worked as an additional "talent tree" for the specialization this weapon represented. Battle for Azeroth takes away that game-changing element and replaces it with an introduction of Heart of Azeroth neckpiece and Azerite Traits.

Classes:

Death Knight

Demon Hunter

Druid

Hunter

Mage

Monk

Paladin

Priest

Rogue

Shaman

Warlock

Warrior

How does Heart of Azerite work

This new system, however, differs greatly from how our artifact worked. Collecting azurite power works just like artifact power in Legion, enhancing item level and power of our necklace but Heart of Azeroth, unlike Legion weapons, has no built-in "talent tree" instead, leveling up HoA unlocks four rings of traits on azerite gear. 

Azerite armor is a piece of equipment that you can obtain, just like normal gear, from dungeon bosses and other activities but it has 3-4 rings of different traits you can choose from. Those rings are unlocked by reaching the required power level of your Heart of Azeroth necklace. 

Traits on various pieces of gear are fixed, for example, azerite mail shoulder piece you can get from the final boss of Waycrest Manor will always have the same selection of traits (varying on difficulty it might have 3 or 4 rings).

Azerite traits are divided into four different trait types that are bound to the azerite armor rings. The first circle will always have class specific (or related to the location of origin) traits, the second circle will give you a selection of role-specific traits (e.g. melee DPS, healer, tank). The third circle will allow you to pick a defensive trait, out of which some might be class specific and fourth, final, circle simply increases item level of that piece of gear by 5. Some traits are specialization-bound as they correspond a certain ability, some are shared. 

what are Location Traits

The first circle contains traits that are specific to your class or reflect how and where you have obtained the item but will not determine what can you do with them, for example, PvP azerite traits will work in PvE scenarios. There are traits that will give you special abilities within specific pieces of content (apart from giving overall bonuses).

A good example would be Uldir raid specific traits. Pieces of azerite armor obtained in Uldir can have one of the two location specific traits, Archive of the Titans which increases your primary stat over time while in combat up to 20 stacks or Laser Matrix which gives your spells a chance to release a barrage of lasers split among all enemies and healing you for half the damage done. Both of those Uldir traits have an additional effect: Reorigination Array which increases your secondary statistics the more "Powerful Foes" you have defeated in Uldir, stacking up to 3 times.

Location traits are traits that depend on where you have obtained the item. For example, if you get a piece of azerite armor in Nazmir you can get trait like Blood Rite which gives your spells and abilities to increase your haste for 15 seconds refreshing on every enemy kill. Zuldazar will grant you Rezan's Fury which gives you a chance of summoning a mini-rex that deals physical dmg and inflicts bleed on the target. Drustvar gear will let you select Blightborne Infusion which will summon a Wandering Soul that will follow you for 14 seconds increasing your critical strike. Vol'Dun azerite gear will have a very potent Thunderous Blast that will give your abilities a chance to strike an enemy with a blast of nature damage.  Stormsong Valley will give you a sought-after trait for PVP, Tidal Surge that will give your spells chance of slowing your target by 20%. There are at least two traits at each zone (with exception of Tiragarde which has three possible traits on gear found there).

Engineering helmets (googles) will have their own unique set of azerite traits such as Barrage of Many Bombs which gives your spells and abilities a chance to fire a cluster bomb at your target that will split into 5 smaller bombs on impact each dealing AoE damage or, perfect for tanking, Personal Absorb-o-Tron that has chance of granting you an absorb shield when taking damage. 

Class Traits

Each class will have its own selection of 6 possible traits on the first ring, unlike legendaries in Legion or artifact traits they are not gameplay changers. Mostly enhancing abilities you are using anyway in your typical rotation.

Death Knight
 

Blood

•  Deep Cuts Heart Strike deals an additional 77 damage when hitting 3 or more targets and heals you for a percentage of the damage done.

•  Marrowblood Death Strike heals for an additional 34 for each remaining charge of Bone Shield.

•  Embrace of the Darkfallen When Vampiric Blood expires, your Leech is increased by 0 for 10 sec.

•  Bones of the Damned Marrowrend has a chance to grant an extra charge of Bone Shield. Bone Shield increases your Armor by 39.

•  Eternal Rune Weapon Dancing Rune Weapon grants you 39 Strength, and each rune spent increases its duration by 1.0 sec, up to a maximum of 5 sec.

•  Bone Spike Graveyard Casting Defile / Death and Decay impales enemies with bone spikes, inflicting 47 Physical damage and healing you for 125 per enemy.

Frost

•  Frozen Tempest Remorseless Winter deals an additional 39 damage. The first time Remorseless Winter deals damage to 3 different enemies, you gain Rime.

•  Killer Frost Frost Strike deals 54 additional damage with each hit and has a 15% chance on critical strikes to grant Killing Machine.

•  Icy Citadel When Pillar of Frost expires, your Strength is increased by 99 for 6 sec. This effect lasts 2 sec longer for each Obliterate and Frostscythe critical strike during Pillar of Frost.

•  Latent Chill Frost Strike deals an additional 116 damage if you have at least 3 empty runes.

•  Glacial Contagion Your autoattacks have a chance to apply Glacial Contagion, dealing 273 Frost damage over 14 sec. Obliterate deals an additional 29 damage to targets infected with Glacial Contagion.

•  Echoing Howl When empowered by Rime, Howling Blast causes a secondary burst of icy wind around you that deals 216 Frost damage to nearby enemies.

Unholy

•  Last Surprise When your ghouls expire, they explode in viscera dealing 0 Shadow damage to nearby enemies.

•  Festering Doom Death Coil causes your next Festering Strike to deal an additional 154 damage.

•  Horrid Experimentation When Dark Transformation expires, the unholy energy in your ghoul is expelled, dealing 157 Shadow damage to all nearby enemies.

•  Festermight Bursting a Festering Wound grants you 6 Strength for 20 sec, stacking. Stacking this effect does not extend its duration.

•  Harrowing Decay Death Coil infects the target with Harrowing Decay, dealing 100 Shadow damage over 4 sec.

•  Cankerous Wounds Festering Strike deals 154 additional damage and has a 10% increased chance of applying 3 Festering Wounds.

•  Bone Spike Graveyard Casting Defile / Death and Decay impales enemies with bone spikes, inflicting 47 Physical damage and healing you for 125 per enemy.

Demon Hunter

Havoc

•  Eyes of Rage Eye Beam deals an additional (Blind Fury 180) 120 damage. Consuming a Soul Fragment reduces the cooldown of Eye Beam by 1.0 sec.

•  Furious Gaze When Eye Beam finishes fully channeling, your Haste is increased by 0 for 8 sec.

•  Revolving Blades Blade Dance deals 60 additional damage, and the cost of your next Blade Dance is reduced by 5 Fury for each enemy struck by the final slash.

•  Thirsting Blades Every 1.5 sec, increase the damage of Chaos Strike by 5 and reduce its cost by 1 Fury. This effect stacks.

•  Seething Power Chaos Strike increases your Agility by 8 for 12 sec. Stacking this effect does not extend its duration.

•  Unbound Chaos Your inner demon slams into nearby enemies at the end of your Fel Rush, dealing 125 Chaos damage.

Vengeance

•  Cycle of Binding Afflicting an enemy with a Sigil grants you 15 Agility for 6 sec and reduces the cooldown of your Sigils by 4 sec.

•  Essence Sever Fracture/Shear has a chance to rip Lesser Soul Fragments from up to 4 nearby enemies, dealing 99 Fire damage to each.

•  Gaping Maw Soul Cleave grants you a shield that absorbs 360 damage, increased by up to 100% based on your missing health.

•  Infernal Armor Immolation Aura increases your Armor by 81, and causes melee attackers to take 23 Fire damage.

•  Revel in Pain When Fiery Brand expires on your primary target, you gain a shield that absorbs up to 4695 damage for 15 sec, based on your damage dealt to them while Fiery Brand was active.

•  Rigid Carapace Demon Spikes increases your Armor by 0 every 1 sec, for 10 sec.

Druid

Balance

•  Dawning Sun Lunar Strike increases the damage of your Solar Wrath by 77 for 8 sec.

•  High Noon Sunfire's radius is increased to 11 yds, and it deals 566 additional damage to its primary target.

•  Lunar Shrapnel Starfall's stars deal an additional 25 damage to nearby enemies when they damage an enemy afflicted by Moonfire.

•  Power of the Moon Moonfire deals 136 additional damage instantly and has a 5% chance to grant you Lunar Empowerment.

•  Streaking Stars While Celestial Alignment is active, your damaging spells call a Streaking Star, dealing an additional 154 damage when they are not a repeat of the previous ability.

•  Sunblaze Solar Wrath increases the damage of your next Starsurge by 39.

Feral

•  Blood Mist Rake deals 25 additional damage over its duration, and has a chance to grant you Berserk for 6 sec. Cannot occur while Incarnation: King of the Jungle/Berserk is active.

•  Gushing Lacerations Rip deals 24 additional damage per combo point and has a 6% chance to award a combo point each time it deals damage.

•  Iron Jaws Ferocious Bite has a 6% chance per combo point to increase the damage of your next Maim by 324 per combo point.

•  Raking Ferocity Rake increases the damage of your next Ferocious Bite by 23.

•  Shredding Fury Tiger's Fury increases the damage of your next four Shreds by 23.

•  Wild Fleshrending Shred deals 99 additional damage, and Brutal Slash/Swipe deals 37 additional damage, to enemies suffering from your Thrash.

Guardian

•  Craggy Bark Barkskin reduces melee attacks against you by 51 damage.

•  Gory Regeneration Mangle extends the duration of your active Frenzied Regeneration by 1.0 sec, and Frenzied Regeneration restores an additional 74 health every sec.

•  Guardian's Wrath Maul deals 149 additional damage, and Maul reduces the cost of your next Ironfur by 15 Rage stacking up to 3 times.

•  Layered Mane Ironfur increases your Agility by 25 and has a 10% chance to grant 2 applications.

•  Masterful Instincts Increases your Mastery by 0 and Armor by 0 for 10 sec after Survival Instincts expires.

•  Twisted Claws Thrash's direct damage has a 50% chance to grant you 13 Agility for 12 sec, stacking up to 5 times.

Restoration

•  Autumn Leaves If Rejuvenation is your only Heal over Time effect on the target, increase the healing of Rejuvenation by 46.

•  Fungal Essence Swiftmend causes your Efflorescence mushroom to burst, healing a nearby injured ally for 231.

•  Grove Tending Swiftmend heals the target for 222 over 9 sec.

•  Lively Spirit When Innervate expires, your Intellect is increased by 25 for each spell the target cast using Innervate. Lasts 20 sec.

•  Rampant Growth Regrowth heals for 72 more over its duration, and its healing over time effect also applies to the target of your Lifebloom.

•  Waking Dream Ysera's Gift now heals every 4 sec, and heals for an additional 25 for each of your active Rejuvenations.

Hunter

Beast Mastery

•  Dance of Death Barbed Shot has a chance equal to your critical strike chance to grant you 86 Agility for 8 sec.

•  Haze of Rage Bestial Wrath increases your Agility by 78 for 8 sec.

•  Pack Alpha Your primary pet's Basic Attack deals 76 more damage for each other pet you have active.

•  Primal Instincts Aspect of the Wild increases your Mastery by 31, and grants you a charge of Barbed Shot.

•  Serrated Jaws Kill Command has a 40% chance to deal an additional 92 damage and grant your Pet 15 Focus.

•  Feeding Frenzy Barbed Shot deals [25 * (4)] additional damage over its duration, and Frenzy's duration is increased to 9.0 sec.

Marksmanship

•  Arcane Flurry Arcane Shot increases the damage of Arcane Shot by 62 for 3 sec, stacking up to 2 times.

•  Focused Fire Rapid Fire deals an additional 200 damage over its duration, and each shot has a 30% chance to generate 2 additional Focus.

•  In The Rhythm When Rapid Fire finishes fully channeling, your Haste is increased by 0 for 8 sec.

•  Rapid Reload Multi-Shots that damage more than 3 targets fire an additional wave of bullets, dealing 59 damage and reducing the cooldown of your Aspects by 1 sec.

•  Steady Aim Steady Shot increases the damage of your next Aimed Shot against the target by 56, stacking up to 5 times.

•  Unerring Vision While Trueshot is active you gain 9 Critical Strike rating every sec, stacking up to 10 times.

Survival

•  Blur of Talons During Coordinated Assault, Mongoose Bite / Raptor Strike increases your Agility by 12 and your Speed by 3 for 6 sec. Stacks up to 5 times.

•  Latent Poison Serpent Sting damage applies Latent Poison, stacking up to 10 times. Your Mongoose Bite Raptor Strike consumes all applications of Latent Poison to deal 36 Nature damage per stack.

•  Up Close And Personal Harpoon increases the damage of your next Mongoose Bite, Raptor Strike by 248, and reduces its cost by 10 Focus.

•  Venomous Fangs Your pet's Basic Attack deals 19 additional damage to enemies suffering from your Serpent Sting.

•  Wildfire Cluster Wildfire Bomb drops a small cluster of bombs around the target, each exploding for 31 damage.

•  Wilderness Survival Mongoose Bite, Raptor Strike deals an additional 27 damage and reduces the remaining cooldown of Wildfire Bomb by 1.0 sec.

Mage

Arcane

•  Anomalous Impact Arcane Missiles deals 25 additional damage for each Arcane Charge you have.

•  Arcane Pressure Arcane Barrage deals an additional 55 damage per Arcane Charge against targets below 20% health.

•  Arcane Pummeling Each wave of Arcane Missiles deals 14 more damage than the previous one.

•  Brain Storm While channeling Evocation, your Intellect is increased by 45 every 1 sec. Lasts 10 sec.

•  Explosive Echo Arcane Explosion deals an additional 5 damage. When it damages at least 3 targets, it has a 10% chance to deal an additional 50 Arcane damage to them.

•  Galvanizing Spark Arcane Blast deals an additional 34 damage and has a 10% chance to generate a second Arcane Charge.

Fire

•  Blaster Master Fire Blast increases your Mastery by 0 for 3 sec.

•  Duplicative Incineration Fireball deals an additional 34 damage, and has a 5% chance to launch a second Fireball.

•  Firemind Consuming Hot Streak grants you a 8 Intellect for 12 sec. This effect stacks up to 3 times.

•  Flames of Alacrity Enhanced Pyrotechnics grants an additional 0 Haste.

•  Preheat Scorch increases the damage the target takes from your Fire Blast by 113 for 30 sec.

•  Trailing Embers Pyroblast burns enemies between you and the target for 124 Fire damage over 6 sec.

Frost

•  Frigid Grasp Icy Veins grants you a charge of Fingers of Frost and increases your Intellect by 35 for 10 sec.

•  Glacial Assault Flurry has a 10% chance each strike to call down an icy comet, crashing into your target and nearby enemies for 147 Frost damage.

•  Packed Ice Ice Lance deals an additional 13 damage to enemies recently damaged by your Frozen Orb.

•  Tunnel of Ice Frostbolt increases the damage of Frostbolt by 13, stacking up to 3 times. This effect is reset if you cast Frostbolt at a different enemy.

•  Whiteout Ice Lance deals an additional 58 damage and reduces the cooldown of Frozen Orb by 1.0 sec.

•  Winter's Reach Consuming Brain Freeze has a 30% chance to make your next non-instant Flurry cast within 15 sec deal an additional 212 damage per hit.

Monk

Brewmaster

•  Boiling Brew Breath of Fire deals 60 additional damage over its duration and has a chance to summon a Healing Sphere each time it deals damage.

•  Elusive Footwork Blackout Strike deals an additional 169 damage. Blackout Strike critical hits grant an additional 1 stack of Elusive Brawler.

•  Fit to Burst Drinking Purifying Brew while at Heavy Stagger causes your next 3 melee abilities to heal you for 360.

•  Niuzao's Blessing Expel Harm restores 60 health over 6 sec for each Healing Sphere consumed.

•  Staggering Strikes When you Blackout Strike, your Stagger is reduced by 62.

•  Training of Niuzao Gain up to 153 Mastery based on your current level of Stagger.

Mistweaver

•  Burst of Life When Life Cocoon expires, it releases a burst of mist that restores 2476 health split among the target and nearby allies.

•  Font of Life Your Essence Font's initial heal is increased by 26 and has a chance to reduce the cooldown of Thunder Focus Tea by 1 sec.

•  Invigorating Brew Vivify does an additional 173 healing when empowered by Thunder Focus Tea.

•  Misty Peaks When your Renewing Mists heals an ally, you have a chance to gain 128 Haste for 10 seconds.

•  Overflowing Mists Your Enveloping Mists heal the target for 62 each time they take damage.

•  Uplifted Spirits Your Vivify heals for an additional 85. Vivify critical heals reduce the cooldown of your Revival by 1.0 sec.

Windwalker

•  Iron Fists Fists of Fury grants you 0 Critical Strike for 6 sec when it hits at least 4 enemies.

•  Meridian Strikes When you Combo Strike, the cooldown of Touch of Death is reduced by 0.0 sec. Touch of Death deals an additional 1540 damage.

•  Open Palm Strikes When Fists of Fury deals damage, it has a 5% chance to refund 1 Chi, and it deals 12 additional damage.

•  Pressure Point Tiger Palm's chance to make your next Blackout Kick free is increased to 10% and Tiger Palm deals an additional 15 damage.

•  Sunrise Technique Attacking a target with Rising Sun Kick causes your damaging melee abilities to deal 49 additional Physical damage to that target for 15 sec.

•  Swift Roundhouse Blackout Kick increases the damage of your next Rising Sun Kick by 74, stacking up to 2 times.

Paladin

Holy

•  Breaking Dawn Increases the healing done by Light of Dawn by 77 and its range to 40 yards.

•  Divine Revelations Healing an ally with Holy Light while empowered by Infusion of Light refunds 0 mana.

•  Grace of the Justicar Judging a foe heals all allies within 8 yards of that enemy for 96.

•  Martyr's Breath Light of the Martyr has a chance to cause your Blessing of Sacrifice to additionally heal the target for 35. This effect can stack up to 10 times.

•  Radiant Incandescence Your Holy Shock criticals deal an additional 62 damage, or an additional 54 healing, over 3 sec.

•  Moment of Compassion Your Flash of Light heals for an additional 62 when cast on a target affected by your Beacon of Light.

Protection

•  Bulwark of Light Avenger's Shield grants you a shield, absorbing 313 damage for 8 sec.

•  Inner Light When Shield of the Righteous expires, gain 193 Block and deal 154 Holy damage to all attackers for 4 sec.

•  Inspiring Vanguard Grand Crusader's chance is increased by 20% and it grants you 62 Strength for 8 sec.

•  Judicious Defense Your Judgment critical strikes reduce the damage of the target's melee attacks against you by 193 for 8 sec.

•  Soaring Shield Avenger's Shield now strikes 4 enemy and grants 15 Mastery per enemy struck for 8 sec.

•  Dauntless Divinity When Guardian of Ancient Kings expires, your Block is increased by 708 for 10 sec.

Retribution

•  Avenger's Might While Avenging Wrath is active, your Mastery is increased by 46.

•  Divine Right When Divine Storm damages an enemy who is below 20% health, your Strength is increased by 35 for 10 sec.

•  Expurgation Your Blade of Justice critical hits cause the target to burn for an additional 0 Holy damage every 2 sec over 6 sec.

•  Indomitable Justice Judgment deals additional damage when your health percentage exceeds the target's, up to 120 damage.

•  Relentless Inquisitor Spending Holy Power grants you 1 haste for 10 sec per Holy Power spent, stacking up to 20 times.

•  Zealotry Casting Crusader Strike increases the damage of your Crusader Strike by 20 for 20 sec, stacking up to 10 times.

Priest

Discipline

•  Contemptuous Homily Penance deals an additional 31 damage and extends your Purge the Wicked / Shadow Word: Pain by 1 sec per bolt.

•  Depth of the Shadows Each time Purge the Wicked / Shadow Word: Pain deals damage, the healing of your next Shadow Mend is increased by 8, up to a maximum of 240.

•  Gift of Forgiveness Smite deals an additional 87 damage if you have at least 3 Atonements active.

•  Weal and Woe Healing an ally with Penance increases the damage of your next Smite by 125. Damaging an enemy with Penance increases the absorption of your next Power Word: Shield by 219.

•  Enduring Luminescence Power Word: Radiance restores 62 additional health, and applies Atonement for 70% of its normal duration.

•  Moment of Repose Pain Suppression applies Atonement to the target and instantly heals them for 27779.

Holy

•  Blessed Sanctuary Echo of Light from Holy Word: Sanctify heals for an additional (110 * 2).

•  Everlasting Light Heal restores up to 198 additional health, based on your missing mana.

•  Permeating Glow Flash Heal increases the healing of your Flash Heals on that ally by 63 for 6 sec.

•  Prayerful Litany Prayer of Healing restores an additional 27 health to the most injured ally it affects.

•  Sacred Flame Holy Fire deals an additional 124 damage instantly, and restores 110 mana each time it deals damage.

•  Word of Mending Prayer of Mending heals for an additional 50 and reduces Holy Word: Sanctify's cooldown by 2 sec.

Shadow

•  Chorus of Insanity When Voidform ends, gain 0 Critical Strike for each stack of Voidform. This effect decays every 1 sec.

•  Death Throes Shadow Word: Pain deals an additional 40 damage. When an enemy dies while afflicted by your Shadow Word: Pain, you gain 5 Insanity.

•  Thought Harvester Casting Vampiric Touch increases the damage of your next Shadow Word: Void Mind Blast by 157.

•  Searing Dialogue Mind Sear deals an additional 25 damage to enemies suffering from your Shadow Word: Pain.

•  Spiteful Apparitions Shadowy Apparitions deal an additional 25 damage to enemies suffering from your Vampiric Touch.

•  Whispers of the Damned Void Bolt increases the damage of Shadow Word: Void / Mind Blast by 58 for 6 sec, stacking up to 6 times.

Rogue

Assassination

•  Double Dose When Mutilate applies Lethal poison with both daggers, it poisons the target for an additional 94 damage.

•  Fan of Blades Fan of Knives' radius is increased to 15 yds and damage is increased by 35 if it hits at least 3 targets.

•  Poisoned Wire Garrote increases the critical strike rating of your next Mutilate by 32.

•  Scent of Blood Rupture increases your Agility by 9. You may gain this benefit for each enemy suffering from your Rupture.

•  Shrouded Suffocation Garrote cast from Stealth generates 2 additional Combo Points and deals 18 additional damage.

•  Twist the Knife Envenom deals 62 additional damage per combo point, and Envenom lasts for 1.0 sec longer when it critically strikes.

Outlaw

•  Ace Up Your Sleeve Each combo point spent on Between the Eyes increases damage by an additional 43 and grants a 2% chance to gain 4 Combo Point.

•  Brigand's Blitz Adrenaline Rush increases your Haste by 23 every sec, stacking up to 10 times. Lasts 20 seconds.

•  Deadshot Between the Eyes increases the damage of your next Pistol Shot by 231.

•  Paradise Lost Take control of the dice of fate, granting yourself 31 Agility if Roll the Bones only provides you with one combat enhancement.

•  Snake Eyes For each combo point spent on Roll the Bones, it causes your next 5 Sinister Strikes to deal 7 additional damage.

•  Storm of Steel Extra strikes from Sinister Strike increase the damage of your next Dispatch by 37.

Subtlety

•  Blade In The Shadows Shadowstrike increases the damage your Shadowstrike deals by 14 for 1 min, stacking up to 10 times.

•  Inevitability Backstab and Shadowstrike deal an additional 62 damage and extend the duration of your Symbols of Death by 1.0 sec.

•  Night's Vengeance Nightblade increases the damage of your next Eviscerate within 8 sec by 25.

•  Perforate Backstabbing an enemy from behind increases the damage of Backstab by 25 for 12 sec, stacking up to 3 times.

•  Sharpened Blades Your autoattacks increase the damage of your next Shuriken Toss or Poisoned Knife by 8, stacking up to 40 times.

•  The First Dance Shadow Dance grants an additional 0 critical strike rating to the first Eviscerate, Shadowstrike, or Shuriken Storm used during it.

Shaman

Elemental

•  Synapse Shock Lightning Bolt and Chain Lightning increase your Intellect by 5 per target hit for 15 sec, stacking up to 5 times.

•  Echo of the Elementals When your Storm Elemental/Fire Elemental expires, it leaves behind a Spark Elemental/Ember Elemental to continue attacking your enemies for 20 sec.

•  Igneous Potential Your Lava Burst deals 77 additional damage, and your Lava Surge chance is increased to 20%.

•  Lava Shock Flame Shock damage increases the damage of your next Earth Shock by 31, stacking up to 20 times.

•  Natural Harmony Dealing Fire damage grants 10 critical strike for 12 sec. Dealing Frost damage grants 10 mastery for 12 sec. Dealing Nature damage grants 10 haste for 12 sec.

•  Rumbling Tremors Your Earth Elemental spawns Tremors that deal 77 Physical damage to enemies within 8 yds every 2 seconds. Earth Elemental's auto attack damage is increased by 77.

Enhancement

•  Ancestral Resonance When you cast Heroism, your Mastery increases by 12 every second, stacking up to 20 times.

•  Lightning Conduit Stormstrike marks the target as a Lightning Conduit for 30 sec. Stormstrike deals 14 Nature damage to all enemies you've marked as Conduits.

•  Primal Primer Melee attacks with Flametongue active increase the damage the target takes from your next Lava Lash by 8, stacking up to 10 times.

•  Roiling Storm Every 2 second, reduce the cost of your next Stormstrike by 2 Maelstrom and increase its damage by 8. This effect stacks up to 15 times.

•  Strength of Earth Rockbiter causes your next melee ability, other than Rockbiter, to deal an additional 103 Nature damage.

•  Lightning Conduit Stormstrike marks the target as a Lightning Conduit for 30 sec. Stormstrike deals 52 Nature damage to all enemies you've marked as Conduits.

Restoration

•  Ebb and Flow Healing Tide Totem restores up to 54 additional health each pulse, based on how close your allies are to the totem. Maximum benefit for allies within 8 yds of the totem.

•  Overflowing Shores Your Healing Rain is 10% larger, and casting Healing Rain instantly restores 0 health to allies within its area.

•  Spouting Spirits Spirit Link Totem restores 616 health to all nearby allies 1 second after it is dropped.

•  Surging Tides If the target of your Riptide is below 50% of their maximum health, Riptide causes them to absorb up to 0 damage, for 8 sec.

•  Swelling Stream Every 3 sec a wave of water flows from your Healing Stream Totem to an injured ally, restoring 82 health to allies in its wake.

•  Soothing Waters Your Chain Heal heals its primary target for an additional 23 healing.

Warlock

Affliction

•  Cascading Calamity Casting Unstable Affliction on a target affected by your Unstable Affliction increases your Haste by 0 for 15 sec

•  Dreadful Calling Unstable Affliction deals 68 additional damage, and casting Unstable Affliction reduce the cooldown of Summon Darkglare by 3 sec.

•  Inevitable Demise Damaging an enemy with Corruption increases the damage of your next Drain Life by 4. This effect stacks up to 100 times.

•  Sudden Onset Agony deals up to an additional 54 damage and starts with 4 stacks.

•  Wracking Brilliance Every other Soul Shard your Agony generates also increases your Intellect by 50 for 6 sec.

•  Deathbloom If your Seed of Corruption detonates early, it deals 0 additional damage.

Demonology

•  Demonic Meteor Hand of Gul'dan deals 15 additional damage and has a 5% chance per Soul Shard spent of refunding a Soul Shard.

•  Explosive Potential When your Implosion consumes 3 or more Imps, gain 31 Haste for 6 sec.

•  Forbidden Knowledge Call Dreadstalkers has a 30% chance to make your next non-instant Demonbolt deal 743 additional damage.

•  Shadow's Bite When your summoned Dreadstalkers fade away, they increase the damage of your Demonbolt by 47 for 8 sec.

•  Supreme Commander When your Demonic Tyrant expires, consume its life essence, granting you a stack of Demonic Core and increasing your Intellect by 92 for 15 sec.

•  Umbral Blaze Your Hand of Guldan has a 15% chance to burn its target for 193 additional Shadowflame damage every 2 sec for 6 sec.

Destruction

•  Accelerant When your Rain of Fire damages 3 or more targets, gain 27 Haste for 8 sec.

•  Bursting Flare Casting Conflagrate on a target affected by your Immolate increases your Mastery by 7 for 20 sec, stacking up to 5 times.

•  Chaotic Inferno Chaos Bolt deals 105 additional damage and has a 25% chance to make your next Incinerate instant.

•  Flashpoint When your Immolate deals periodic damage to a target above 80% health, gain 62 Haste for 8 sec.

•  Rolling Havoc Each time your spells duplicate to a Havoc target, gain 10 Intellect for 10 sec. This effect stacks.

•  Crashing Chaos Summoning your Infernal increases the damage of your next 8 Chaos Bolts by 57.

Warrior

Arms

•  Crushing Assault Your melee abilities have a chance to increase the damage of your next Slam by 248 and reduce its Rage cost by 20.

•  Executioner's Precision Execute increases the damage of your next Mortal Strike against the target by 105, stacking up to 2 times.

•  Lord of War Warbreaker / Colossus Smash deals an additional 62 damage and generates 10 Rage.

•  Gathering Storm While Ravager is active Bladestorming, every 1 sec you gain 15 Speed, and Ravager's Bladestorm's damage increases by 25. Lasts 6 sec.

•  Seismic Wave Overpower causes a seismic wave that deals 43 Physical damage to enemies in a 10 yd line.

•  Test of Might When Warbreaker / Colossus Smash expires, your Strength is increased by 2 for every 10 Rage you spent during Warbreaker/Colossus Smash. Lasts 12 sec.

Fury

•  Bloodcraze Bloodthirst gains 0 critical strike rating every 1 sec, up to 0 rating. This effect resets when Bloodthirst critically strikes.

•  Infinite Fury When Recklessness expires, your Critical Strike is increased by 0 for 5 sec. Your auto attacks will refresh the duration of this effect.

•  Pulverizing Blows Raging Blow causes every strike of your next Rampage to deal an additional 6 damage. Stacks up to 5 times.

•  Reckless Flurry Auto attacks deal 5 additional damage and reduce the cooldown of Recklessness by 0.0 sec.

•  Simmering Rage Rampage deals an additional 60 damage and generates 1 Rage per strike.

•  Trample the Weak Rampaging an enemy whose health percentage is lower than yours increases your Strength and Stamina by 19 for 8 sec.

Protection

•  Bloodsport Ignore Pain prevents 87 additional damage, and grants you 31 Leech for 8 sec.

•  Brace for Impact Using Shield Slam increases your Block by 31 and the damage of your Shield Slam by 25 for 9 sec. Multiple applications of this effect may overlap.

•  Callous Reprisal Revenge deals 35 additional damage and reduces the damage enemies deal to you by (-- 50 / 100)% for 8 sec, stacking up to 3 times.

•  Deafening Crash Thunder Clap deals an additional 50 damage and extends the duration of your Demoralizing Shout on affected enemies by 1 sec.

•  Iron Fortress Increases Block by 62, and blocking an attack deals 74 Physical damage to the attacker. Critical blocks deal double damage.

•  Reinforced Plating Blocking an attack increases your Strength by 8 for 5 sec, stacking up to 5 times.

Those are just examples of class and spec specific offensive (mostly, unless a tank or heal spec) traits. Each class also has a defensive trait.