Arcane Evolution Feat 4
Source Pathfinder Core Rulebook
Prerequisites bloodline that grants arcane spells
Your arcane legacy grants you an exceptional aptitude for intellectual and academic pursuits. You become trained in one skill of your choice.
Additionally, you keep a book of arcane spells similar to a wizard's spellbook. You add all the spells in your spell repertoire to this book for free, and you can add additional arcane spells to the book by paying the appropriate cost and using your Arcana skill, similarly to how a wizard can Learn Spells to add those spells to his spellbook.
During your daily preparations, choose any one spell from your book of arcane spells. If it isn't in your spell repertoire, add it to your spell repertoire until the next time you prepare. If it's already in your spell repertoire, add it as an additional signature spell for that day.
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.
ArcaneThis magic comes from the arcane tradition, which is built on logic and rationality. Anything with this trait is magical.
SorcererThis indicates abilities from the sorcerer class.