Deepen shadows

Deepen shadows was a common spell used by ninja in Kara-Tur. The spell was very rare outside Kara-Tur.

Effects
When cast, the spell discreetly darkened the area surrounding the ninja. The spell had the best affect in an enclosed space like a room or a cave. The darkness was unobtrusive and aroused little notice from others in the area. The spell could be detected with a detect magic spell. The spell would attempt to darken a whole room and had an area of affect of 10 feet by 10 feet (3 meters by 3 meters), which increased based on the ninja's skill. If a ninja tried to use this spell in a large room, beyond their abilities, the spell would fail.

Components
The spell required only a somatic component.