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Energy is the rogue's and monk's equivalent of the caster's mana and the warrior's rage. It is also used by the druid's Cat Form and death knight ghouls. Energy is required for the execution of many rogue abilities and Cat Form abilities, although standard melee attacks don't depend on it at all. By default the energy bar is full, with 100 points of energy. Energy regenerates at a fixed rate of 10 energy every second, in and out of combat.

Modified by


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 rogues can improve these.


  • 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 options

Per official Blizzard "blue" post by Ancilorn on March 1, 2010 regarding Planned Stat and System Changes :

Haste - Haste will become more attractive for melee classes by allowing them to recover resources such as energy and runes more quickly. Our intention for Haste to let you "do stuff" more often.

Patch changes

  • World of Warcraft: Wrath of the Lich King Patch 3.0.3 (04-Nov-2008):  Regeneration went from 20 energy per tick to 1 energy per decisecond.