The Wolf's expression crumpled into intense anger as it stared Merlin down. Its hatred for Merlin seemingly being more powerful than the targeting system.
The reason for the wolf's sudden hatred for Merlin, even when it had a perfect next target in the form of Snowbunny, was because Merlin was currently implementing an advanced tanking technique.
This technique essentially worked in the opposite way to the technique used to hide ones presence. Instead of his method of minimising his influence on the world around him to improve his stealth ability. Merlin was doing the opposite, trying to maximise every aspect he could, to make sure he was being noticed. Merlin weaved in traces of bloodlust to further catch the wolf's attention and make sure he was designated as the highest threat target by the wolf's AI.