Weapon Expertise Feature 5
Champion, Investigator, Oracle, Magus You've dedicated yourself to learning the intricacies of your weapons. Your proficiency ranks for simple weapons, martial weapons, and unarmed attacks increase to expert.
Sorcerer Training and magic improved your weapon technique. Your proficiency rank for simple weapons and unarmed attacks increases to expert.
Summoner Training and magic improved your weapon technique. Your proficiency rank for simple weapons and unarmed attacks increases to expert. (Note: this is called Simple Weapon Expertise in Secrets of Magic)
Witch Through sheer experience, you've improved your technique with your weapons. Your proficiency ranks for simple weapons and unarmed attacks increase to expert.
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.