Snake Blood
(Forgotten Realms Campaign Setting, page 38, DnD 3.0)
[General]
The taint of the yuan-ti runs in your veins. No outward signs give away your heritage, but you are something more--or less--than entirely human. Regions: Chult, Tashalar, the Vilhon Reach (Hlondeth only).
Benefit
You get a +2 bonus on Fortitude saving throws against poison and a +1 bonus on all Reflex saving throws.
Special
You may only take this feat as a 1st-level character.