Benefits

You cast no shadow whatsoever, or the shadow you do have is monstrous. Under normal lighted conditions, this is not hard to observe—but uncommon to notice. Creatures that succeed at a DC 15 Wisdom check notice it plainly (an additional Perception check may be required based on environmental conditions). This telltale sign of wickedness cannot be concealed by misdirection, nondetection, or illusions, except those that also affect shadows (such as invisibility).