One option is to be a restoration warrior.
Using vengeful weapon and wielder's boon (and possibly Spirit Light Weapon {E} but its probably not that great on a warrior)
or Channelling warrior
using Nightmare Weapon, Splinter Weapon and Wailing Weapon. As you can see the weapon spells are what should be interesting a warrior most.
Most Weapon Spells are 5 energy and the few that are 10 could be countered by using a zealous weapon.
5 energy with a long cooldown for a few seconds use. Not really what I would call beneficial to a warrior.
Vengeful Weapon costs 5 energy and recharges in 3 seconds. Problem ??
Use zealous weapon + IAS stance (frenzy is good for PvP for probably not for PvE) spamming the low cost energy ones, using the 10 cost ones when needed or when you have the energy.