This probably has something to do with him turning in to a werewolf, the scary part is that it’s an arrow like shape next to it, are they really double sided art card? Description from nurgleprobe.wordpress.com. I searched for this on bing.com/images
The werewolf, also known as a lycanthrope, is a mythological human with the ability to shape shift into a wolf or wolf-like creature. Some legends say the werewolf has no control over his transformation and must turn only at the full moon, while others say he is free to transform at will. Werewolves are created when a human is bitten or sometimes scratched by a transformed wolf.