Pathfinder 1e Character Sheet: Snake

Stealthy: You get a +2 bonus on all Escape Artist and Stealth skill checks.

Low-Light Vision: Feiryn can see twice as far as humans in conditions of dim light.

Swift as Shadows: Feiryn reduce the penalty for using Stealth while moving at full speed by 5, and reduce the Stealth check penalty for sniping by 10.

Sneak Attack: If a rogue can catch an opponent when he is unable to defend himself effectively from their attack, they can strike a vital spot for extra damage.
Rogue attacks deal 1d6 extra damage anytime their target would be denied a Dexterity bonus to AC, or when the rogue flanks their target. (Should the rogue score a critical hit with a sneak attack, this extra damage rolled is not multiplied.)

Trapfinding: A rogue adds 1/2 her level to Perception skill checks made to locate traps and to Disable Device skill checks (minimum +1). A rogue can use Disable Device to disarm magic traps.

Small: Feiryn gain a +1 size bonus to their AC, a +1 size bonus on attack rolls, a –1 penalty to their CMB and CMD, and a +4 size bonus on Stealth checks.

Scavenger: Feiryn gain a +2 racial bonus on Appraise and Perception checks to find hidden objects (including traps and secret doors), determine whether food is spoiled, or identify a potion by taste.