Keen Flair Feature 15
You inflict particularly devastating attacks on even well-defended foes. When you Strike with a weapon or unarmed attack with which you have master proficiency, if you roll a 19 on the die and the roll is a success, you critically succeed instead.
Traits
Common
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.
SwashbucklerThis indicates abilities from the Swashbuckler class.