CHARACTER
Name Wanda Maximoff
Canon MCU
Age 22
Birthright Jewel Opal
Dreams made flesh Wanda wants the Sokovia Accords in their current state abolished (and the Raft shut down). Wanda's not necessarily opposed to some form of oversight, but she is opposed to the draconian ways the Accords treat enhanced individuals. She just wants to be able to go home and have her found family back together again.
Canon point Post-Captain America: Civil War
Canon Powers For ease of understanding, I'm going to break Wanda's currently known powers up into overarching themes. Wanda's powers are ill-defined in canon and sometimes all we get is a one-off or a throwaway line. Please let me know if anything isn't clear.

Telepathy: Wanda can read minds and sense others' emotions. It's not always her choice - if someone particularly close to her is seriously injured or killed, she can feel it through her own powers. She can be overwhelmed by very strong emotions or pain and is already used to maintaining mental barriers to protect herself. She's going to start off with a little more comfort than most other Strangers likely will with psychic threads, but having to worry about energy bound to a place is something she's never experienced.

Telekinesis: With her hands free, Wanda can move, levitate, push, pull, and throw objects or people around. This is her preferred method of (potentially) nonlethal fighting - she prefers to very literally break up a fight by throwing threats away from her allies. The environment itself can become her weapon and she frequently uses this ability to distract her enemies, cut off their path, or force them to deal with unexpected hazards. Wanda can also use this ability defensively to prevent someone from using a weapon against her, such as forcing a gun to aim at the ground or catching a weapon before it can connect.

Flight: Wanda can also levitate herself, and she can bring someone with her if she needs to. Her powers can also give her a boost to launch herself into the air and land safely.

Energy Manipulation: Wanda can create blasts, bolts, waves, shields, and beams of scarlet energy. Typically, with one notable exception, this power comes from her hands. Bolts can be directed to bounce between targets and Wanda can control whether it amounts to nothing more than a push or something actually destructive.

However, Wanda's confidence is deeply shaken after the Battle of Sokovia. She only ever uses raw energy against someone she means to kill.

Augmented Combat: Wanda is going to drop this pretty much immediately in Draega because she doesn't want to lose a hand or an arm, but she does know how to fight in close quarters by using her powers to augment and protect her hands. 

Mental Manipulation: Wanda inherited many of the Mind Stone's latent abilities, and although she has shied away from using them after joining the Avengers, necessity and survival will force her to reconsider that stance. After all, it was once her preferred method of handling her enemies.

On the lighter end, Wanda can knock people out or force them into a fugue state where they're left babbling. This is how she handled generic SHIELD agents, and if she doesn't have a personal issue with someone, that's likely as far as it goes.

If someone has pissed her off...well. There are several particularly nasty options at Wanda's disposal. She can force them to relive their worst memories. She can also create a fantastic vision of their personal nightmare, or force them to confront an uncomfortable truth about themselves. Like her less invasive options, her visions can incapacitate people for an extended length of time, depending on Jewel strength and how 'bad' the vision was; Natasha had to be physically supported several hours after encountering Wanda.

Logically, it stands to reason that she could also help people feel other, more desirable emotions and that she could help someone calm down, for example.

Mind Control: Wanda can control minds in a limited area...or release someone from an outside influence. If Jewel strength is against her, she may be able to help give someone the strength to fight back against an illusion, weaken it, or otherwise tip the scales just enough to help them help themselves.

Like the Mind Stone, hitting someone in the head super hard can release them from Wanda's control.

Healing: This power is not well understood, because Wanda only used it once and wasn't able to finish her work. Unless future canon contradicts me later, I generally assume that what she's really doing is feeding power into someone so their body can heal at a rapid rate. So while Wanda can heal grievous injuries, such as Vision being impaled, she can't heal anything the body wouldn't physically be able to heal on its own (ie, if someone else loses an arm, there's nothing she can do for them unless that character is of a species that can regrow limbs) and she can't undo scarring (so no fixing Nick Fury's eye).

Other: Electricity temporarily disrupts Wanda's personal powers and would force her to rely only on Craft and her own mundane abilities.

Unlike her brother, Wanda's powers have never affected her physically before, so she's not used to needing any particular kind of self-care after a fight. It's going to take some getting used to, and Wanda is definitely the kind of person who will borrow against her own body's health if it will save someone.

Personality Wanda is the generally calmer, more responsible half of the Maximoff twins. At her best, she is perceptive, caring, and protective of both her loved ones and the innocent. However, when properly angered, she can be extremely vengeful and is sometimes blind to the potential negative consequences of her actions.

Wanda has had a drive to take her personal tragedy and turn it into something better since losing her parents at the age of 10 when their apartment building was bombed. She and Pietro participated in protests and riots against foreign powers occupying and destabilizing Sokovia before Strucker and List approached them. Where others may have collapsed into depression and apathy, Wanda and Pietro supported each other and became the other's rock. Neither sibling is the ringleader - Pietro had to convince Wanda to participate in Strucker's experiments in the first place and Wanda had to convince Pietro to let Tony go early in Age of Ultron.

Wanda demonstrates her resilience again after losing Pietro by officially joining the Avengers. She was greatly moved by SHIELD's efforts to rescue her people, and I'm sure there is no small amount of wanting to atone for helping Ultron and accidentally putting Pietro in a fatal situation. Now, Wanda feels a need to prove that she can be better. Even in Civil War, while she doesn't tell Steve that it's okay to leave them at Ross's mercy, she also doesn't beg him to stay and help them escape. Wanda likely knows better than anyone else what might have been in store for them, but it was more important that Steve be free to stop what they saw as a global threat.

And even after escaping the Raft, Wanda doesn't stop trying to help people. She stays with the rogue Avengers even after Clint and Scott take plea deals to return home.

Basically, her home is gone. Her blood family is gone. Joining the Avengers gave her a way to find purpose and a place she might be able to belong someday. Losing that too has absolutely devastated her. Wanda will still be looking for that sense of belonging and those who show her genuine kindness will find her receptive to their efforts to befriend her. She's lost so much that she will cling to whatever true friends she can find and do anything to keep them safe. Wanda definitely can get blinders where the people she loves are concerned - while she's normally not the impulsive twin, she completely abandoned her post after Pietro's death to track Ultron down. Angry, she is at her most dangerous. While she struggles with doubt from time to time, anger and protectiveness have always eventually managed to override it.

Wanda is also prone to taking on guilt that she shouldn't. Wanda completely deflates after the accident in Lagos. It wasn't carelessness - she literally collapsed from the effort of trying to contain the bomb - but she never tries to defend herself. Even when Tony says that none of them cared about what happened in Sokovia, she just sits there and absorbs it and spirals into helplessness.

Usually, a pep talk from Clint or Steve will snap her out of it if she's in a downward spiral, and once Wanda's made up her mind, she acts decisively. But at this current canon point, Wanda is terrified of how destructive her powers can be...and of how many times someone else has used her as a living weapon. She walks a fine line between confidence in knowing she is one of the most powerful beings on Earth and the fear that she's going to mess up again and get people killed. Guilt both pushes her to try to be a better person, to save as many people as possible, and warns her of the consequences of getting involved.

Still, when the people she cares about are threatened, Wanda has time and time again demonstrated that while she's tried to learn from her past mistakes, she still has a vengeful streak. With Clint in particular, she sometimes panics and acts irrationally to protect him - she threw Vision through the floor and Nat into a cargo crate for Clint's sake even though she cares for Vision and Nat very much. Although in each case her actions were meant to incapacitate, not cause actual harm, she does regret it later and a more rational Wanda would likely not have made the same choices. Killing to protect the people she cares about is also always on the table: in Infinity War, she literally shredded Proxima Midnight for almost killing Natasha. Unlike some of the other MCU heroes, Wanda never shows any hesitation or remorse for the villains she's killed, and the very violent ways she chose to deal with Proxima Midnight and Ultron never seem to bother her.

Certainly there are reasons for people to potentially fear her - if you can't trust your own mind, what can you trust? However, Wanda's never used her powers for personal gain and the rogue Avengers are barely scraping by after they go on the run. Queen Fayura wouldn't need to worry about Wanda abusing her power. She's lived under corrupt governments before and she has no patience for bullies.

Wanda's guilt over what happened to Sokovia also puts her in a unique position to be 100% Done with the Blood and Landen's feuding and firmly on Queen Fayura's side. Their land is dying. If they can't learn to look beyond the past to work together to save their future, they're going to destroy themselves. And it's always the people with the least power who suffer the most. Even if the Queen wasn't offering anything Wanda wanted, she'd still want to help. It's just the right thing to do.

It shouldn't really surprise anyone who spends much time with Wanda that she ended up with the Opal. She is constantly torn between being afraid of her powers (or what people might do to her because of those powers) and being desperate to make everything she's lost mean something. With support, she may learn to trust herself again and accept that what happened in Lagos was not her fault.

Finally, although she's nowhere near the level of her brother, Wanda does have a dry sense of humor that escapes in the occasional quip. She briefly snarks at Steve in South Africa and shows a teasing side in a rare unguarded moment with Pietro. It seems to be the twins' main coping mechanism - if they weren't able to inject a small amount of humor into the dark situations they often found themselves in, it would have been a lot harder to keep going.

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