DESCRIPTION

This spell creates a large circular lens, 10 feet in diameter per caster level. The caster can see through the lens and freely cast spells through it, while the other side protects him as if he had total cover. Arcane lens essentially blocks line of effect from certain spells originating from the side opposite the caster. Spells of 4th level and lower that are cast from the front of the lens are completely blocked. Spells that are cast from behind the lens, or area effect spells whose center of effect is behind the lens, affect the caster normally.