Oath of the Slayer Feat 2
Source Pathfinder Lost Omens Divine Mysteries
During your daily preparations, you can swear an oath to defeat, topple, or destroy a certain kind of enemy during your deeds that day. Choose aberrations, celestials, dragons, fiends, or undead. You can't choose celestials if you're holy, nor can you choose fiends if you're unholy. You gain an edict to banish or slay creatures of that kind.
Your Strikes and devotion spells that deal damage do an additional 1 spirit damage against a creature with the chosen trait. This damage increases to 2 at 7th level and 3 at 14th level. If a creature with the chosen trait triggers your champion's reaction, this additional damage doubles until the end of your next turn.
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.