In a good villain story, the villain should be a force to be reckoned with. Their presence should be felt throughout the story. They need to have a unique personality, like Moriarty in Sherlock Holmes stories. He is extremely intelligent and always one step ahead. And there should be a build - up of tension between the villain and the hero. The story should make the reader or viewer wonder if the hero can actually defeat such a formidable villain.
Strength and intelligence also contribute. A villain who can match the hero in power and wits is more engaging. Like Hannibal Lecter in 'The Silence of the Lambs'. He is highly intelligent and extremely dangerous, making him a memorable villain.
Well, for me, a great villain in fiction has to be really menacing. Like Darth Vader in 'Star Wars'. His deep voice, his black suit, and his powerful Force abilities make him look super scary. And he has a clear goal of ruling the galaxy.
One factor is their power. A villain who is extremely powerful, such as Lord Voldemort with his dark magic, is more likely to be famous. Their relationship with the hero is crucial too. The antagonistic relationship between Sherlock Holmes and Moriarty makes Moriarty well - known. Additionally, a villain's backstory can contribute. If it's tragic or complex, like Maleficent's, it can make them stand out. People are interested in understanding why a villain became who they are. Also, their influence on the story world is important. If they change the course of events significantly, like Sauron in The Lord of the Rings, they'll be remembered.
A character can be the villain if they have immoral or unethical motives. For example, if they want to steal, kill, or deceive just for their own gain.
Often, a useless villain in a manhwa has weak powers or skills. Maybe they make poor decisions or are just there for comic relief and don't pose a real threat to the main characters.
Well, a great villain is complex. They might have redeeming qualities or a tragic backstory that makes you understand them, even if you don't agree with their actions. Also, they should be a worthy opponent for the protagonist, constantly pushing them to grow and develop.