Gorriol

Gorriol is one of the Monsters in Monster Crown.

Description
Gorriol is a demonic entity that manifests from the fabric of human nightmares. Its twisting, turning shape enables  this beast's signature trait, the ability to unconsciously detect the beastly form which the victim will fear most  and assume that shape.

Attracted to those prone to paranoia and insomnia, it will manipulate shadows, causing anomalies at the edge of  the victims vision in the days leading up to kill. Outbreaks of sleep paralysis to those nearby marks this creatures approach. Symptoms suddenly disappear one morning, coinciding with the discovery of a gruesome murder that happened during the night...

Left or Right? You get to choose!

Trivia

 * This monster was designed by devotedtoneurosis.