Racial modifiers: Sylphs are more dexterous and intelligent than standard humans, if more fragile in constitution.
Racial subtype:Sylphs are outsiders with the native subtype. This is a double edged sword as it prevents him from being targeted by certain spells of the enemy like charm person or other hampering effects, but it also prevents certain buffing spells from targeting his alien physique as well. He can be healed and harmed from spells, just not buffed and debuffed.
Darkvision: He can see in the natural darkness for 30 feet without trouble, but magical darkness still blocks his vision.
Breeze-Kissed Breezes seem to follow most sylphs wherever they go, but some sylphs are better able to control these winds than others. A Sylph with this racial trait surrounds herself with swirling winds, gaining a bonus against non-magical ranged attacks. The Sylph can calm or renew these winds as a swift action. Once per day, the Sylph can channel this wind into a single gust, making a bull rush or trip combat maneuver attempt against one creature within 30 feet. Whether or not the attempt succeeds, the winds are exhausted and no longer provide a bonus to the sylph for 24 hours. This is a supernatural ability.
Like the Wind A Sylph with this racial trait gains a +5 foot bonus to her base speed.
Whispering Wind Some sylphs are especially thin and wispy, as though they were made more of air than flesh. Sylphs with this racial trait gain a bonus on Stealth checks.
Sneak attack X3 A rouge is still a rogue, when landing a blow the enemy cannot defend against, the damage is three times as powerful
Trapfinding Aside from the skills in disabling mere normal mechanical traps better than any layman, He is also skilled in disabling Magical traps as well.
Evasion Being as agile as he is, he takes half damage when he fails to avoid a trap and none at all when he successfully avoids them altogether.
Sacred sneak attack A skill he picked up traveling with his mother, Any sneak attack he lands counts as a 'good' weapon against undead only.
Trapsense Years of failing traps has taught him how to be just a little better at avoiding the ones that actually aim for him, improving his ability to avoid targeted traps
Gloom magic "Hello darkness my old fiend..." A simple spell to dim an area near him, either on him to hide better or dim another sort of light to make broad actions easier
Uncanny dodgeA lifetime of sneaking let him keep aware when someone is sneaking around him. he can not be surprised by merely invisible opponents or be flat footed in a surprise attack.
Hide in plain sight As a graduate shadowdancer, he can use his skills in Stealth even while being observed. As long as she is within 10 feet of an area of dim light, he can hide himself from view in the open without anything to actually hide behind. He cannot, however, hide in his own shadow.
Magical talent Sometimes a spell is just quicker. With a little memorization (and a tattoo on his arm from a page in a spellbook) he can open or close any unlocked door three times a day.