Tutorial/"Nightspirit Sigils"

It is said that once there was an Iktomisaurus artist who used a combination of Phlogiston Engraving and oil-painted graffiti to leave behind these markings in Natlan. Iktomisaurs and some Masters of the Night-Wind can Hold to Aim and extract the information within. Sometimes you may be strengthened, and other times you may receive unexpected rewards...