You are able to cast one additional spell per day.

Prerequisite(s): Caster level 1st or higher

Benefit: You can cast an additional spell of a spell level you are already able to cast. The spell level chosen must be lower than the highest spell level you can cast. (For example, if the highest-level spell you can currently cast is 5th level, you may choose to gain one additional spell slot of any level from 1st to 4th when you gain this feat.) Once the additional spell level is chosen, it cannot be changed.

Special: You may gain this feat more than once.