Incredible Luck (Halfling) Feat 13
Source Pathfinder Lost Omens: Character Guide
Prerequisites Halfling Luck
Even other halflings consider you to be particularly lucky. You can use Halfling Luck once per hour, rather than once per day. If you have Guiding Luck, you can still use Halfling Luck when you fail a Perception check or attack roll only once per day (though you can use it within the same hour that you used Halfling Luck), and if you have Shared Luck, you can still use Halfling Luck on an ally instead of yourself only once per day.
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.