Deepshadow

You reach briefly into the Void with your hand and pull forth an illusory shadow of dim light that envelops the 5-foot cube you occupy and moves with you for the spell's duration. Magical light or radiance illuminates the area and reveals the dim light as an illusion, but not not natural light or the light created by magical fire or lightning. Creatures with blindsight or truesight are unaffected by this spell, as are creatures immune to illusions. The dim light applies to ability checks, saving throws, attacks, and movements for the spell's duration. Creatures can make a successful Perception or Investigation ability check as an action against your spell saving throw DC to detect the illusion. All effects end at the start of your next turn.