WOW PowerLeveling: Another more aggressive alternative is to put up a Winged Shell before a fury
Leveling Route: Level it up with any extra WOW PowerLeveling sp along the way. Ideally max it as soon as possible, but its not top priority (frost, stunning, and passives are more important).
Strategies/Tips: Follow up a Winged Shell with an hp potion and voila, no hp lost while you skewer your target with arrows. Another more aggressive alternative is to put up a Winged Shell before a fury - minimal damage received, heavy damage given.
Winged Blessing | Great Precision Another passive skill that increases the attack range 1 meter with each level. It's common sense really to level this. Greater range is an archer's best friend.
Leveling Route: Max it as early as possible.
Strategies/Tips: Level it first when you get the sp.
Flight Mastery | Flying Mastery Passive skill that increases your flying speed. It only works with white wings, so don't expect the brown eagle wings or any cash shop wing to get the additional +2 m/s boost. Very useful for Cleric or Archer (with +mp regen) as with maxed flying mastery, the white wings are cash shop quality (in terms of speed).
A well timed Winged Shell can cover a retreat very well. Pure agi archers are recommended to invest in this.