Allows all your attacks to strike an additional nearby enemy for 15 sec, but reduces your energy regeneration while active. Only use when fighting more than one foe.
Your attacks strike an additional nearby opponent. Energy regeneration reduced by 20%.
Duration: 15 seconds
Blade Flurry is the ability that Rogues learn when they specialize in the Combat talent tree, which is first possible at level 10. When active, all of the Rogue's attacks strike an additional nearby enemy, but their energy regenerates 20% slower. Blade Flurry is one of the few area of effect abilities available to Rogues (the others being [Fan of Knives] and [Killing Spree]).
If the attack on the primary target deals a critical hit, the replicated damage on the secondary target is also a critical. However, the armor rating of the second target will mitigate the damage.
Attacks like [Gouge] and [Kidney Shot] will deal damage to the second opponent, but without replicating the stun effect.
Not recommended for use in tight places where fragile crowd control is in effect (Saps, Polymorphs, etc).
Use caution when popping Blade Flurry at the beginning of a combat, when there is another mob in range. You may easily overaggro this way. Often it's better to wait a few seconds before popping the Blade Flurry, so that Tanks can get some threat.
Improvements
[Glyph of Blade Flurry] is a major glyph that reduces the penalty to energy regeneration by 50%. In other words, when this glyph is active Blade Flurry reduces energy regeneration by 10%.
[Fan of Knives] and 
[Killing Spree]).
[Stealth].
[Gouge] and 
[Glyph of Blade Flurry] is a major glyph that reduces the penalty to energy regeneration by 50%. In other words, when this glyph is active Blade Flurry reduces energy regeneration by 10%.
