Psionic Egoist

Your innate psionic talents improve your mastery of your own body, granting you the following benefits:

• Increase your Intelligence, Wisdom, or Charisma by 1 to a maximum of 20.
• Whenever you gain temporary hit points, you gain a number of additional temporary hit points equal to your proficiency bonus.
• You learn the enhance ability spell, which you can cast without a spell slot or components. Once you cast the spell in this way, you can't do so again until you finish a long rest. You can can also cast this spell using spell slots you have of the appropriate level. This spell's spellcasting ability is the ability increased by this feat.
  
  

*From the Chronicles of Eberron, Keith Baker.