Jinx

Who is Jinx?

Powder and her older sister Vi were orphaned as small children when their parents died in a failed uprising against Piltover. Vander, the former rebel leader who ran the bar where the undercity drank, took them in alongside two other kids, Mylo and Claggor. Vi was the fighter of the group. Powder was the tinkerer who made things out of scrap, and her gadgets didn't work as often as she wanted them to.

When the series moves forward several years, Powder has become Jinx. She works for Silco, the crime lord who rules the undercity's drug trade, as his inventor and his most dangerous weapon. She's also, in a way the show never undercuts, his adopted daughter. She hears the voices of her dead brothers. She builds bombs with faces on them. She can be funny, playful and terrifying in the same scene.

• Younger sister of Vi, and the person Vi spends the series trying to reach.
• A gifted, self-taught engineer who builds her own weapons.
• Raised first by Vander and then by Silco, two men who loved her very differently.
• The undercity's most wanted criminal and, eventually, its symbol of defiance.
• One of the most popular champions in League of Legends, years before the show.

Personality

As Powder, she's sweet, anxious and eager to prove herself. She wants to go on jobs with the older kids and is hurt every time she's left behind. Mylo's teasing gets under her skin because it echoes her own fear that she's a liability, and that fear is what drives her to build the device that destroys her family.

As Jinx, that fear has calcified. She acts out a cartoonish chaos, all giggles and sudden mood swings, but the show makes it clear this is a defence. She hears the voices of Mylo and Claggor, who mock her and tell her she's a jinx, and she sees them in the corners of rooms. She can switch from childish delight to panic in a second, and her worst violence tends to come in those moments of panic rather than from cold calculation.

Her core is still a little sister who feels abandoned. When Vi comes back after years in prison, Jinx doesn't feel relief so much as a terrible mix of love and rage. She's afraid of being replaced, afraid of being left again, and, deep down, sure that she deserves it. That's what makes her both frightening and heartbreaking: the show never lets you forget the child inside the outlaw.

Mental health and the voices

Arcane doesn't give Jinx a diagnosis, and it's better for it. Her hallucinations are presented as grief and guilt given faces. Fortiche's animation shows them as scribbled, glowing doodles crawling across the screen, so you see her world the way she does. It's one of the clearest examples of the show using its art style to tell character, discussed further in our guide to character design.

Inventions and fighting style

Jinx's real power is her mind. She's a self-taught engineer working with scavenged parts, and she builds things that Piltover's academy-trained inventors would struggle to make.

In a fight she's agile and unpredictable rather than strong. She swings through the undercity's walkways, uses smoke and distraction, and treats a battle like a game. She's also an excellent shot. Her weakness is herself: when the voices get loud, she stops thinking clearly, and the people around her are the ones who get hurt.

After a near-fatal injury in season one, Singed saves her with shimmer, the undercity's drug. Her eyes glow pink afterwards. The show uses that glow as a visual reminder that Silco's world has literally got into her blood.

Jinx's story

Act one: Powder

The first three episodes follow the kids. A burglary Vi leads in Piltover turns up a strange crystal, and the theft sets enforcers and Silco against Vander's family. Silco captures Vander. Desperate to help rescue him, Powder builds a bomb using the stolen crystal and follows the others in. It detonates, killing Mylo and Claggor and, as far as anyone knows, Vander. Vi, in shock, hits her and calls her a jinx, then walks away and is taken by Silco's ally Marcus. Silco finds Powder alone, crying in the wreckage, and decides to keep her.

Acts two and three: Jinx

Years later, Jinx is Silco's protégé, trusted with his most violent work and tolerated by his lieutenants only because he insists. When she learns Vi is alive and free, the reunion she always wanted turns sour almost immediately. Vi has come back with Caitlyn, an enforcer from Piltover, and Jinx sees it as being replaced.

A clash on a bridge with Ekko, Powder's childhood friend who now leads the Firelights rebels, leaves her badly hurt and leads to the shimmer treatment. Silco, meanwhile, faces a choice between his ambitions and handing her over to Piltover, and he chooses her.

In the final episode Jinx stages a tense dinner in the old hideout, gathering Vi, Caitlyn and Silco around a table, Caitlyn and Silco tied to their chairs, and demanding that Vi choose between her and Caitlyn. It's the most painful scene in the series. When things fall apart, she fires in panic and kills Silco by accident. He dies holding her and telling her she's perfect the way she is. Then, with nothing left to lose, she launches her hextech rocket into Piltover's council chamber at the moment they are about to vote on peace with the undercity. The season ends on the explosion.

Season two

The attack turns Piltover hard-line, and enforcers raid the undercity looking for her. Jinx goes to ground, carrying the guilt of Silco's death and the council attack. Meanwhile, without asking for it, she becomes a symbol: undercity kids paint her face and her doodles on the walls as a sign of defiance against Piltover.

She also finds Isha, a small, silent girl who refuses to be scared of her. With Isha, Jinx gets to be an older sister for the first time, and it shows a gentleness the first season only hinted at. Her relationship with Vi stays the axis of her story, through confrontation and painful attempts at understanding, and in an alternate reality reached through a hextech anomaly, Ekko gets a glimpse of what Powder's life might have been if that first terrible day had gone differently.

In the final battle for Piltover, Jinx makes a choice to protect Vi at great cost to herself. The show then deliberately stops short of confirming what became of her, leaving viewers with hints rather than an answer. It's in keeping with a character who has always been half real person, half legend.

Relationships

Jinx in League of Legends

Jinx was added to League of Legends as a playable champion in 2013, introduced as "the Loose Cannon", a criminal from Zaun who causes destruction for the thrill of it. In the game she's a marksman, a ranged damage dealer who swaps between a minigun and the Fishbones rocket launcher, throws chomping grenades, and finishes fights with a huge rocket that crosses the whole map. She gets faster and more dangerous every time she helps take down an enemy, which suits her personality.

Her original backstory was thin. For years Riot hinted at a link between her and Vi, the punching enforcer champion, without making it explicit. Arcane turned that hint into the spine of a two-season drama, gave Jinx a childhood and a name, and made her trauma the explanation for the chaos players already knew. She also made a crossover appearance as an outfit in Fortnite around the show's first season.

Trivia

• The monkey. Powder's toy monkey and the monkey-shaped bombs she makes later connect her childhood self to her adult one. It shows up at key moments in both seasons.
• The braids. Her extremely long blue braids come straight from her League design. Arcane gives Powder short blue hair, and the braids mark her transformation.
• The doodles. Jinx's hand-drawn scribbles appear in her hideout, on her weapons and, in season two, on the undercity's walls. Fortiche also uses them as on-screen effects when she's struggling.
• Two voices. Ella Purnell and Mia Sinclair Jenness make the transition between Powder and Jinx feel like one person, which is harder than it sounds given the years skipped in between.
• The name. She gets her name from her sister's worst moment, which is one of the cruellest origin stories for a nickname in animation.
• Archetypes. She sits somewhere between tragic villain and anti-hero, which is why she shows up in both our villain types and anti-hero guides.

Why Jinx matters

Jinx is Arcane's argument in one character. The show is about two cities that damage each other's children, and she's the clearest case of that damage. Piltover's enforcers, Silco's war, Vander's choices and Vi's single moment of anger all leave marks on her, and she turns every one of them into a weapon.

She's also a reminder that the most memorable villains are often the most sympathetic. You can understand every step she takes and still be horrified by where she ends up. That balance, and the found family she keeps losing and remaking, is what lifts her above the chaotic-girl stereotype she started as. If you're interested in that kind of family story, see our guide to the found family trope.