WoW Rogue Pool Size and Regeneration Rate PVP

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.

• The consumable item Thistle Tea, which can be made by rogue cooks, 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 when used restore energy.
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• The Relentless Strikes talent gives a 20% chance per combo point spent to restore 25 energy.
  
  
• The Combat Potency talent regenerates energy on offhand attacks.
  
  
• The Focused Attacks talent regenerates energy on melee critical strikes.
  
  
• The Adrenaline Rush talent increases your energy regeneration rate by 100% for 15 seconds.
  
  
• The Improved Sinister Strike talent reduces the energy cost of Sinister Strike.
  
  
• The Arcane Torrent racial ability of blood elves gives 15 energy.