Seen and Unseen

Your anonymity makes you difficult to find through magical or mundane means, and you have learned how to combat both of your progenitor races.

Prerequisite: Exile’s Path, character level 5th, half-elf.

Benefit: You gain a +2 bonus on all saving throws against scrying or divination effects. Additionally, you gain a +2 bonus on all Stealth checks, and elves, half- elves, and humans take a –4 penalty on all efforts to track you through the Survival skill.

Source: Advanced Race Guide