Dust of Twilight spell

Dust of Twilight
Conjuration [darkness]
Fortitude negates (fatigue only)
SR: No
V, S, M (coal dust)
1 standard action, instantaneous, medium
A shower of iridescent black particles clings to and extinguishes torches, lanterns, sunrods, and similar mundane light sources and dispels any spell of 2nd level or lower with the light descriptor (as Dispel Magic). Creatures in the area must make a Fortitude save or become fatigued.
Targets: creatures and objects in a 10-ft. spread
Professions
Arcanist [2], Bard [2], Bloodrager [2], Skald [2], Sorcerer [2], Wizard [2].

Celestial Focus
Alnar
Material Components
Coal dust.
Related School
Conjuration [darkness]
Effect Duration
Instantaneous
Effect Casting Time
1 standard action
Range
Medium (100 ft. + 10 ft./level)
Legality
Legal to know and use.

Known Casters
Ludlam Copse [Oracle]