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Expand Aura 
Feat 16
Source Pathfinder Advanced Player's Guide
Prerequisites You have at least one aura from a champion feat or feature.
You focus your divine power to extend your influence. Select one aura you have from a champion feat or feature, such as Aura of Courage or Aura of Life. The radius of the aura is doubled until the start of your next turn.
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.
ChampionThis indicates abilities from the champion class.
ConcentrateAn action with this trait requires a degree of mental concentration and discipline.