You bend the light to your will, making you invisible to the naked eye.
Prerequisite(s): Ability to cast 4th-level spells, Light Focus.
As long as you have a light spell of 4th level or higher in your known spells and have at least 4 MP in your MP pool, whenever you cast a Light spell, you act as if under the effects of Vanish by bending the light to impair vision, but only against creatures that rely on sight to see you. This effect lasts one round per spell level of the highest-level light spell you can cast. As a secondary benefit, you gain a +1 competence bonus to your caster level when casting light spells.