Blood in the Air Feat 12
Source Pathfinder Guns & Gears
Requirements An enemy you've damaged with a ranged weapon during the last minute is Concealed or Hidden from you.
Once you've locked on to a target, little can obscure your aim. Make a ranged weapon Strike against the required target. This Strike ignores the target's Concealed condition and reduces the flat check for the Hidden condition from 11 to 5.
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.
ConcentrateAn action with this trait requires a degree of mental concentration and discipline.
GunslingerThis indicates abilities from the gunslinger class.