You learn another spell.
Prerequisites
Spellcasting with limited Spells Known, caster level 3rd.
Benefit
You gain one additional spell known of any level up to one level lower than the highest-level spell you can cast.
You can choose any spell, including a spell from another class’s list; however, an arcane spellcaster can only learn an arcane spell and a divine spellcaster can only learn a divine spell.
Special
You can gain this feat multiple times. Each time, you learn one new spell at any level up to one less than the highest-level spell you can cast.
Spells gained through this feat do not count against maximum spell known or the limitations of researching new spells.