Dyon watched Silver Fang disappear into the distance before sighing a small breath of relief. He exploited the innate weaknesses of beasts to fear the strong before making Silver Fang feel grateful to him, but this wasn't a tactic that would work with everyone.
When Dyon faced his third trial and defeated his opponents up to the elder with Emperor level Presence, he couldn't move, but that was because he didn't have access to Battle Intent. Although he hadn't known about Battle Intent until now, it was the twins who informed him of Silver Fang's abilities… Simply put, Silver Fang's Battle Intent was a counter to his Presence!
The issue was that Battle Intent took very long to form. One wouldn't gain the spirituality necessary until the celestial realm, which is why it wasn't used by others in their third trial.