Living Graffiti (Ink)
CREATURE 3A living graffiti is a painting or drawing that has come to life by magic. These two-dimensional beings can move along any flat surface they touch, including walls, floors, furniture, doors, and even bodies of still water. They can't exist apart from the surfaces they traverse except in brief bursts, which they typically use to harass or attack nearby creatures. They exhibit a mischievous nature and desire to make the real world as much of a caricature as their own two-dimensional domain.
Magic is a complex thing to begin with, and at a certain level of sophistication, the differences between a spell and an autonomous creature become increasingly blurry. Living symbols are constructed creatures of reified and reinforced magic, held together by glyphs, runes, and eldritch formulae.
When a creature attempts to Strike a living graffiti and critically misses, the attacker hits the surface (a canvas, wall, or so on) behind the living graffiti. This might damage the surface or the attacker's weapon, at the GM's discretion.
A living graffiti can move only along flat surfaces. If the surface it's on is destroyed (such as a portrait hit by a Fireball spell or a wall being smashed), the graffiti takes 2d6 damage and is shunted to the nearest flat surface. If there is no flat surface within 5 feet, the graffiti is destroyed.