RULES - Spells (Illumination and Darkness)

Darkness
This spell causes an object to radiate darkness out to a 20-foot radius. This darkness causes the illumination level in the area to drop one step, from bright illumination to normal illumination, from normal illumination to dim illumination, or from dim illumination to dark illumination. This spell cannot reduce the level of the area below dark illumination. Creatures with light vulnerability or sensitivity take no penalties in normal illumination. All creatures gain concealment (20% miss chance) in dim illumination. All creatures gain total concealment (50% miss chance) in dark illumination. Creatures with darkvision can see in an area of dim illumination or dark illumination without penalty. Artificial sources of illumination, such as candles, lanterns and torches, do not increase the illumination level in an area of darkness. Magical light sources only increase the light level in an area if they are of a higher spell level than darkness.

If darkness is cast on a small object that is then placed inside or under a lightproof covering, the spell’s effect is blocked until the covering is removed.

This spell does not stack with itself. Darkness can be used to counter or dispel any light spell of equal or lower spell level.

Daylight
You touch an object when you cast this spell, causing the object to increase the illumination level in a 60-foot radius by three levels up to bright illumination (dark illumination becomes bright illumination). This illumination increases the light level for an additional 60 feet by one (dark illumination becomes normal illumination, dim illumination becomes normal illumination) up to a maximum of normal illumination. Creatures that take penalties in bright illumination take them while within the 60-foot radius of this magical light source. Despite its name, this spell is not the equivalent of daylight for the purposes of creatures that are damaged or destroyed by such light.

If daylight is cast on a small object that is then placed inside or under a light-proof covering, the spell’s effects are blocked until the covering is removed.

Artificial sources of illumination, such as candles, lanterns and torches, do not increase the illumination level in an area of daylight. Magical light sources only increase the light level in an area if they are of a higher spell level than darkness. In such a case the otherwise prevailing light conditions exist in the overlapping areas of effect.

Daylight can be used to counter or dispel any darkness spell of equal or lower level, such as darkness.

Deeper Darkness
This spell functions as darkness, except that objects radiate darkness in a 60-foot radius and the illumination level is lowered by two steps. Bright illumination becomes dim illumination and normal illumination becomes dark illumination. Areas of dim illumination and dark illumination become supernaturally dark and therefore have the effects of supernatural dark illumination. This functions like dark illumination, with all creatures including those with darkvision not being able to see within the spell’s confines and subject to the blinded condition.

This spell does not stack with itself. Deeper darkness can be used to counter or dispel any light spell of equal or lower spell level.

Light
This spell causes a touched object to glow like a torch. A light spell increases the illumination level of an area in a 20-foot radius by two illumination levels up to normal illumination (dark illumination becomes normal illumination, and dim illumination becomes normal illumination), and increases the light level for an additional 20 feet beyond that by one step, up to normal illumination (dark illumination becomes dim illumination, and dim illumination becomes normal illumination). In an area of normal or bright illumination, this spell does not raise the illumination level. The effect is immobile, but it can be cast on a movable object.

You can only have one light spell active at any one time. If you cast this spell while another casting is still in effect, the previous casting is dispelled. If you make this spell permanent (through permanency or a similar effect), it does not count against this limit.

Light can be used to counter or dispel any darkness spell of equal or lower spell level.

RULES - Spells (Illumination and Darkness)

Pathfinder - Legacy of Fire IanHoulihan