User blog:LuluTDFan/What makes a good villain?

Hello, fellow fanfiction writers. I'm here to ask you for advice -- as well as give some adivce -- on what a good antagonist and/or villain is. Now, here is just a quick overview of the different types of villains that are common in Total Drama fanfiction (all information can be found on the villains wiki). That's basically what I think the most common Total Drama villains are like. Obviously, there are some other ones that are missing, but they aren't really that important. Also, I know that most of these are things that everyone knows about and use for their fanfictions. I just thought I'd post this to help you guys, but that's not all.
 * Anti-hero - A character that is the hero of the story but does not possess the typical "heroic" qualities. Anti-heroes will murder, steal and can be generally immoral.
 * Anti-villain - A character who is in opposition to the protagonist or hero of the story but possesses hero qualities. Anti-villains generally have the sympathy of the audience.
 * Blackmailers - Villains that use threats in order to gain something.
 * Bullies - Villains who pick on others (usually the good guy) for the sake of just being mean.
 * Comedic villains - A villain who commits funny misdeeds or is otherwise played for laughs. Generally not a serious threat to the hero.
 * Femme fatale - A sexually attractive female villain who uses seduction to manipulate others.
 * Greedy villains - Villains that have uncontrollable greed and would do just about anything to get what they want.
 * Jerks - Villains who are rude, narcissistic, selfish, and bully people who they believe to be inferior.
 * Juvenile delinquents - Villains under 18 years of age that commit crimes.
 * Karma houdini - A villain who recieve no comeuppance for their crimes, and who are still in position to pursue their evil ways when the story end.
 * Sadists - Villains who take pleasure from commiting acts of evil.
 * Scapegoat - A villain that is punished way more than he or she would actually deserve, which is the exact opposite of a Karma Houdini.
 * Tragic villain - A villain who has suffered events in the past that have caused them to become evil or seek vengeance. Tragic villains often have the sympathy of the audience and the hero often is reluctant to confront them.

I'm really struggling into making the main antagonist of Total Drama Extreme, Sienna, original and unique. I don't want her to be just another Heather, Justin, Courtney, Alejandro or Scott (though, if I had to compare her to one of them, it'd be Heather). So, this is where you guys come in. I'd really love if you guys could help, because I want her to be a really cool and interesting villain. I already have some things in mind, which you'll see later in the story. So, here ae some things that you could think about if you decide to help me out; That's all and thanks for reading.
 * What do I think a previous antagonist should've done on their time on the show?
 * What should the main antagonist's tactic be?
 * What interactions should the main antagonist have with other campers (other than negative interactions)?