The powerful mutant and magic-user, Wanda Maximoff, has been both a villain and a hero. Using the name Scarlet Witch, she has done both good and evil, or sometimes a little in between. She was once thought to be the daughter of the villain Magneto, though that has since been mostly walked back in the comics.
Under the influence of her former supposed father, she has committed her share of questionable deeds. She seems to wish to do what is right— however, her troubled mind sometimes causes problems for the entirety of the Marvel 616. Scarlet Witch's actions are typically colored by her mental state at the time, and she's gone too far so many times it is unclear where she stands anymore.
10 She Joined The Brotherhood Of Evil Mutants
After Magneto saved Wanda's life from an angry mob, she ends up joining the Brotherhood of Evil Mutants. She becomes a villain dedicated to following after Magneto.
She has a desire to be a hero and do what is right, but she commits many villainous acts, operating against her own better judgment as aligns herself with the Brotherhood. She eventually repents for her past actions and starts working with the Avengers.
9 She Created An Army of Zombies
Wanda, feeling guilty for her actions in House of M, searches for a way to make things right. She decides to use her magic to resurrect the mutants who died in the Genosha massacre.
The magic is so powerful that Wanda is knocked unconscious. When she finally wakes up, she finds herself surrounded by mutant zombies. Wanda has to rely on Doctor Strange to help her fix the problem she created. In the meantime, the zombies wreak havoc on Genosha.
8 She Killed Her Friend
Agatha Harkness is a centuries-old witch who serves as a friend and mentor to Wanda. Her actions range from good to bad, making her morally ambiguous. Her son, Nicholas Scratch, is a dangerous villain in his own right.
When Wanda is going through a difficult time, Agatha uses her powers to alter Wanda's memories. Agatha genuinely thought she was helping Wanda. When Wanda finds out what Agatha did, she becomes furious— and in rage, Wanda kills her friend.
7 She Was In An Inappropriate Relationship With Her Brother
Scarlet Witch is known for having an extremely close relationship with her twin brother, Pietro/Quicksilver. Her brother obviously cares for her, following her from the Brotherhood to the Avengers. In The Ultimates, it is implied that Scarlet Witch and Quicksilver's relationship goes beyond a familial one.
While the comic begins by just implying an intimate relationship, the two are eventually caught during an inappropriate moment that confirms it. Despite this being an alternative universe, some fans have continued to question the nature of Scarlet Witch and Quicksilver's relationship over the years.
6 Her Use Of Chaos Magic Put Everyone In Danger
As a child, Wanda was touched by the evil force known as Chthon. Chthon gave Wanda her magical ability to warp reality. She is taught to use magic, but she is also warned about her powers. Wanda continues to use her magic despite the warning.
Chthon is able to possess Wanda, partially because of their shared connection with chaos. If Wanda found a way to get rid of her chaos magic, she wouldn't be nearly as powerful; however, that might be for the best.
5 She Nearly Married Doctor Doom
Wiccan, a member of the Young Avengers, started to suspect he was a resurrected version of Wanda's son. He began to search for the missing Wanda, hoping she'd be able to confirm his suspicions.
When Wiccan thinks he has succeeded in tracking down Wanda, it turns out to be a doombot in disguise. He goes to Latveria in hopes of finally finding Wanda. When he finds her, she isn't quite herself— she has decided to marry Doctor Doom, aligning herself with one of Marvel's most powerful villains.
4 She Destroyed The Avengers
Wanda becomes driven by anger and grief, driving her to attack the Avengers. She turns against her teammates, allies, and friends. She uses her incredible power to destroy the Avengers and everything they stand for.
She seemingly kills Ant-Man and Hawkeye. She forces Vision to crash into the Avengers' mansion. She makes Tony look like an alcoholic, making the government lose trust in the Avengers. Compromised by her heart-crushing losses, Wanda acts out on her worst urges.
3 She Tried To Kill Her Family
Wanda became angry at Doctor Doom and the ways he had manipulated her. She longed to get her revenge against her former groom, realizing that he had been using her for her power.
She decided to go to Latveria and attack its evil ruler. Magneto and Quicksilver tried to stop her, but she turned against them. She used her magic to cast a spell that would kill her closest relatives. The spell instantly worked on Quicksilver. Magneto was fine— calling into question their familial relationship to each other.
2 She Conceived Despite Her Husband's Objections
Vision and Wanda's relationship is born partially out of manipulation. Their relationship had been organized in an effort to keep Wanda from having children. As an android, Vision shouldn't have been able to father a child.
Wanda uses her powers to become pregnant anyway. Despite Vision's disapproval, she decided to use her magic to get what she wanted. Her selfish decision will end up causing her problems in the future as she unknowingly used pieces of Mephisto to create her sons.
1 She Destroyed The Mutants
During House of M, Wanda has one of her most iconic moments. She utters three simple words, and the mutant population instantly drops. Wanda decided to say this after she had been used to completely rewrite history.
In the new version of history, mutants had been considered superior to humans. Magneto took advantage of the mutants' new status by trying to take over the world. Scarlet Witch disliked Magneto's plans and ultimately turned against him.