Energy

Energy is represented as a yellow bar under the health bar.

Energy is the primary resource used by rogues, druids in [Cat Form] and Brewmaster and Windwalker monks. Energy regenerates at a fixed rate of 1 energy every decisecond (ie every one tenth of a second), in and out of combat, and is capped at 100. This makes energy a very fast-regenerating and fast-depletable resource.

Pool size and regeneration rate

The size of the energy pool and the regeneration rate are both constant - they do not increase with levels, and are not related to any statistics. However, there are various ways to improve these.

Consumables

•  [Thistle Tea] can be made by rogue cooks and provides 100 energy instantly on a five minute cooldown. At level 70,  [Thistle Tea] gives 40 energy; at level 80, it restores 20 energy.
•  [Pure Energy] and  [Crimson Steer Energy Drink] are both quest rewards that restore energy when used.

Talents and glyphs

Rogue

• Assassination
  • [Assassin's Resolve] is awarded when choosing assassination as you specialization and increases the energy pool by 20.
  • The [Overkill] talent increases your energy regeneration by 30% while stealthed and for 20 seconds after breaking it.
  • The [Cold Blood] talent gives you 25 energy when activated.
  • The [Murderous Intent] talent gives you 15 energy when backstabbing a target below 35% health.
  • The [Venomous Wounds] talent has a 30% chance to restore 10 energy when using [Rupture] or [Garrote] on a poisoned target. You also regain more energy if the target dies while Rupture is still on the target.
• Combat
  • Vitality is awarded when choosing combat as you specialization and increases the energy regeneration rate by 25%.
  • The [Combat Potency] talent gives your off-hand attacks and [Main Gauche] attacks a 20% to regenerate 5 energy.
  • The [Adrenaline Rush] talent increases your energy regeneration rate by 100% for 15 seconds.
  • [Blade Flurry] 'reduces' energy regeneration by 30% when active.
  • The [Improved Sinister Strike] talent reduces the energy cost of [Sinister Strike] by 6.
• Subtlety
  • The [Relentless Strikes] talent gives your finishing moves a 20% chance per combo point to restore 25 energy.
  • The [Energetic Recovery] talent empowers your [Recuperate] ability to also periodically restore 12 energy.
  • The [Slaughter From The Shadows] talent reduces the energy cost of [Ambush] and [Backstab] by 20, and [Hemorrhage] and [Fan of Knives] by 6.
• Glyphs
  •  [Glyph of Backstab] - Your backstab critical strikes grant 5 energy.
  •  [Glyph of Mutilate] - Reduces the energy cost of [Mutilate] by 5.
  •  [Glyph of Feint] - Reduces the energy cost of [Feint] by 5.
  •  [Glyph of Tricks of the Trade] - Removes the Energy cost of your [Tricks of the Trade] ability but reduces the recipient's damage bonus by 5%.

Druid

• The [Omen of Clarity] passive grants a chance to reduce the energy cost of the next ability by 100%.
• Feral Combat
  • The [Furor] talent allows you to keep up to 100 of your Energy when you shapeshift into [Cat Form].
  • The [King of the Jungle] talent grants 60 energy when activating [Tiger's Fury] ability.
  • The [Stampede] talent makes your next [Ravage] cost 100& less energy for 10 sec after you use Feral Charge (Cat).
  • The [Primal Madness] talent makes [Tiger's Fury] and [Berserk] increase your current and maximum Energy by 20 during their durations.
  • The [Berserk] talent reduces energy cost of cat abilities by 50% when activated.

Monk

Please add any available information to this section.

Equipment

Rogue

•  [Renataki's Charm of Trickery] On Use: Instantly increases your energy by 60 (reduced by 2 every level after level 60).
• Nightslayer Armor 5 set bonus: Increases your maximum energy by 10.
• Bonescythe Armor 4 set bonus: Your Backstab, Sinister Strike, and Hemorrhage critical hits cause you to regain 5 energy.
• Madcap's Outfit 5 set bonus: Reduces energy cost of your Eviscerate and Rupture Abilities by 5.
• Assassination Armor 4 set bonus: Reduces the energy cost of Eviscerate and Envenom by 10.
• Gladiator's Vestments 4 set bonus: Increases your maximum energy by 10. (Any combination of Season 1, 2, 3, and/or 4 will give the bonus.)

Druid

• Malorne Harness 2 set bonus: Your melee attacks in Cat Form have a chance to generate 20 additional energy.
• Thunderheart Harness 2 set bonus: Reduces the energy cost of your Mangle ability in Cat Form by 5.

Patch changes

• Patch 3.0.2 (2008-10-14): Energy no longer uses the "tick" system and instead regenerates in real time. Regeneration went from 20 energy per tick to 1 energy per decisecond.