Stubborn Persistence Feat 13
Source Pathfinder Advanced Player's Guide
Humans are renowned for their ability to persist through the most grueling of trials. When you would become Fatigued, attempt a DC 17 flat. On a success, you aren't fatigued.
If the fatigued condition has an underlying cause that you don't address, such as lack of rest, you must attempt the check again at an interval determined by the GM until you fail the flat check or address the underlying cause.
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.
HumanA creature with this trait is a member of the human ancestry. Humans are a diverse array of people known for their adaptability. An ability with this trait can be used or selected only by humans.