Greater Spell Specialization

Choose a spell with which you have Spell Specialization and that belongs to a school in which you have Spell Focus and Greater Spell Focus. Your caster level is 4 levels higher when casting that spell. This change affects all variables associated with caster level, including level-dependent variables (such as range or damage), and dispel and spell penetration checks. In addition, when you prepare that spell with a metamagic feat, it takes up a spell slot two levels lower than normal, to a minimum of its normal level. For example, if Leanine Starborn takes Greater Spell Specialization and chooses frost nova (a 3rd-level spell), she can prepare a maximized frost nova as a 4th-level spell, an empowered frost nova as a 3rd-level spell and so on. The benefits of this feat do not stack with the benefits of Spell Specialization.