Dirty

Dirty was a reversed cantrip that initiate wizards could learn. It added spots, stains, soil, and scuff marks to various surfaces.

Effects
This cantrip sullied up to of a particular type of surface such as a wall, a floor, a ceiling, a window, a set of curtains, an article of clothing, a mirror, a set of dishes, etc. It was effectively the opposite of the clean cantrip.

Components
This cantrip required verbal and somatic components to cast. The caster made a spitting sound while shuffling and stamping their feet, as if kicking up dust or wiping the soles of their shoes.