Scarn was a substance that developed on grain crops before the advent of spice. As it wasn't technically spice, owning scarn was permissible, especially since it had legitimate uses. To transform into spice, scarn required processing and chemical alterations to reach its mature form. This substance flourished on Cyphar, becoming the focal point of a territorial conflict. Darth Maul once adopted the guise of a member within a fabricated cartel to collaborate with Zek Peiro, a thief he suspected was Force-sensitive, with the intent of pilfering scarn shipments. Ultimately, Maul murdered Peiro during their collaborative endeavor, seeking to satisfy his violent craving for eliminating Jedi.