Canny Acumen Feat 1
Source Pathfinder Core Rulebook
Your avoidance or observation is beyond the ken of most in your profession. Choose Fortitude saves, Reflex saves, Will saves, or Perception. You become an expert in your choice. At 17th level, you become a master in your choice.
Traits
Anything that doesn't list another rarity trait (uncommon, rare, or unique) automatically has the common trait. This rarity indicates that an ability, item, or spell is available to all players who meet the prerequisites for it. A creature of this rarity is generally known and can be summoned with the appropriate summon spell.
GeneralA type of feat that any character can select, regardless of ancestry and class, as long as they meet the prerequisites. You can select a feat with this trait when your class grants a general feat.