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There is a Legacy version here.

PFS StandardSpiritual Guides [reaction] Feat 4

Barbarian Fortune 
Source Player Core 2 pg. 78
Frequency once per day
Prerequisites spirit instinct
Trigger You fail, but don’t critically fail, a Perception check or a skill check.

Though no one sees them and only you can hear them, the spirits around you constantly chatter, save when you are raging. Sometimes they're even helpful, and their guidance can even cut through the haze of your rage. Reroll the triggering check, using the second result even if it's worse.

Traits

Fortune:

A 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.