Aereni Focus( Player's Guide to Eberron, p. 20)
While humans value versatility, the Aereni prefer to hone a single skill to absolute perfection. From childhood you have studied one particular path, and these decades of devotion result in remarkable skill.
1st level only, Elf, region of origin Aerenal,
A single skill of your choice is now a class skill for you, and you gain a +3 bonus on checks using that skill.
Aereni Focus counts as Skill Focus for the purpose of meeting any requirement or prerequisite.