Fiendsbane Oath (Paladin) Feat 2
Source Pathfinder Core Rulebook
Prerequisites tenets of good, paladin cause
You've sworn an oath to banish the corruption of fiends to the dark planes they call home. Add the following tenet to your champion's code after the other tenets: "You must banish or slay fiends you come across as long as you have a reasonable chance of success; in the incredibly unlikely event you find a good fiend, you don't have to banish or kill it."
Your Retributive Strike gains a +4 circumstance bonus to damage against a fiend, or a +6 circumstance bonus if you have master proficiency with the weapon you used.
You don't consider fiends to be legitimate authorities, even in nations ruled by fiends.
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.
ChampionThis indicates abilities from the champion class.
OathOaths add an additional tenet to your code. You can usually have only one feat with this trait.