Tutorial/Nightspirit Graffiti and Nightspirit Bodies

A form of graffiti with strange power said to have been left behind by the ancestors of the Masters of the Night-Wind. Iktomisaurs and some Masters of the Night-Wind can Hold to Aim and absorb the information and power within, creating a corresponding Nightspirit Body. However, it seems that the power of a single piece of graffiti can only support one Nightspirit Body at once...