@IdanaHamz Mm I'm not sure what you mean. He's not a villain or he's not a great villain?
In the movie, Killmonger had a clear goal, one that was shared with other characters on the "good side" but had a largely different way of reaching that goal (ergo he was on the "bad side").
Either way, my point was that intriguing and well-written ("great" within the context of the previous conversation) villains are rare so it's not surprising that the villain in this manga is not well-developed.