demonification

Demonification refers to the visual or thematic transformation of a character into a demon-like or evil-like version of themselves. It describes artwork or illustrations where characters are given demonic features—such as horns, wings, tails, glowing eyes, or dark auras—while still retaining recognizable elements of their original design.

Demonification often emphasizes darker, edgier aesthetics and can range from subtle modifications to full demonic reimaginings. It is a subset of broader transformation or alternate-form tropes commonly found in fan art, fantasy media, and anime-inspired illustration communities.