Elven Persistence 
Feat 5
Source Pathfinder Lost Omens Shining Kingdoms
Frequency once per day
Trigger You fail a skill check you're at least trained in.
Elves don't give up easily on their pursuits. Instead of the result you received for the triggering skill check, you receive a result of 12 + your proficiency bonus (don't apply any other bonuses, penalties, or modifiers).
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.
ElfA creature with this trait is a member of the elf ancestry. Elves are mysterious people with rich traditions of magic and scholarship who typically have low-light vision. An ability with this trait can be used or selected only by elves. A weapon with this trait is created and used by elves.
FortuneA fortune effect beneficially alters how you roll your dice. You can never have more than one fortune effect alter a single roll. If multiple fortune effects would apply, you have to pick which to use. If a fortune effect and a misfortune effect would apply to the same roll, the two cancel each other out, and you roll normally.