The episode forces the audience to look at through a complex lens. He isn't a traditional villain; he is a man torn between two loyalties. By choosing Patry, he chooses his oldest friend over his kingdom, leading to the near-extinction of the humans he swore to protect.
If you are following the series for the first time or rewatching, I can help you with: A of what happens in the next episode. Black Clover (TV) Episode 106
It highlights the ultimate betrayal by William Vangeance against the man who raised him. The episode forces the audience to look at