Exorcist

You trace the trail of the Aberration through the canvas. A stench extends from the town into the forest, leaving dark ink stains upon the green backdrop. You recall the teachings of your grandfather, Lumirae, on how to subdue an Aberration: you must first see through the cause of its birth. You sweep your brush to paint a path through the forest, letting a strand of pure moonlight flow along it as you follow the scent of evil.
The monster born from the tender fears of a child towers higher than mountains, possessing a human head upon a bestial body. You paint hawks to peck out its eyes and sketch ropes to bind its form. Then, with a light touch of your brush, you ride a coiling Bullet Wyrm to bite through its neck.
Under the Phantasmoon, the creature dissolves into scattered ink. Beneath its remains, you seem to have found something... A blank mask.