First and most important, presence. He has it right now. Just a very horrible force to the whole game. When he shows the screen, you know that the dirt is going down. Honestly, the recent game was trying to come with the villain who comes close to the powerful and scary Bogamine like Renoire.
Second, character design. Look at this boy, so good.
Third, excitement. If the spoilers explain very much, but it is absolutely understood what he did. Unlike other villain where they have good points but bad ways, you can agree on its ways by the end. The player really has a lot of responsibility to decide for himself how he feels about Renoire until the end.
Fourth, the plot involvement. Unlike many sports, where villain is a kind of catalyst to happen, Renoire is not just moving the plot, it has an important role in the stimulus of lore, active plot and character. From the beginning to the end, he is one of the most important roles of the game.
