Subtlety Rogues are masters of stealth and subterfuge. To exceed in combat as a Subtlety Rogue, you must rely on your stealth and opening moves. Remember to restealth before every fight, and open hard with Ambush or Cheap Shot. These abilities will quickly build combo points and allow you to set up into a recuperate and slice and dice. Your main attacks are Backstab and Hemorrhage, so manage those keybindings well. Keep in mind that with Shadow Dance you can use your stealth only abilities!
Recommended Keybindings for a Subtlety Rogue
[Tricks of the Trade]
[Cloak of Shadows]
[Fan of Knives]
[Slice and Dice]