Fiendish Lore Feat 1
Source Pathfinder Advanced Player's Guide
You were raised by a tiefling or a fiendish relative, or you've devoted yourself to researching the secrets of the fiendish realms.
You gain the trained proficiency rank in Intimidation and Religion. If you would automatically become trained in one of those skills (from your background or class, for example), you instead become trained in a skill of your choice.
You also become trained in a Lore skill related to the fiendish plane from which you trace your lineage (usually Abaddon Lore, Abyss Lore, or Hell Lore).
Note: If you are already trained in one of the skills provided by this feat, you need to manually select an alternative skill. You also need to manually enter the granted Lore skill.
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.
TieflingA creature with this trait is a member of the tiefling ancestry.