Halfling Ingenuity Feat 5
Source Pathfinder Lost Omens: Character Guide
Prerequisites Halfling Luck
While your willingness to dig into a task you know little about might get you into trouble, your incredible luck often saves you from danger. You can attempt skill actions that normally require you to be trained even if you aren't trained in that skill. If you use Halfling Luck when you fail a check for a skill with which you are untrained, you can add a proficiency bonus equal to your level, rather than 0, when you reroll the triggering skill check. You gain a +4 circumstance bonus to this rerolled skill check.
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.
HalflingA creature with this trait is a member of the halfling ancestry. These small people are friendly wanderers considered to be lucky. An ability with this trait can be used or selected only by halflings. A weapon with this trait is created and used by halflings.