Nightshroud*

Drawing on the Warp's limitless darkness, you cast an illusion of ethereal shadows around you so your enemies see only inky darkness when they look your way. Until the start of your next turn, your Zone becomes Heavily Obscured. You and your allies can see through the Zone normally while within the Zone. A creature that notices the darkness and tries to see through it can use its Action on its turn to try to defeat the illusion. If it wins a Challenging (+0) Discipline (Psychic) Test Opposing your Manifest Test, the creature can see through the Zone normally and ignores the effects of this power for the next hour.