How this Mystique is different
In X-Men: Evolution, Mystique is portrayed as a ruthless and feared character, a master of hand-to-hand combat and an unscrupulous manipulator, but is also subject to temper tantrums when roused. Mystique wore her trademark white dress during season one but for the rest of the series wore a black combative outfit. After being exposed to the enhancing machine on Magneto's base, Mystique was briefly shown in her reptilian form, reflecting her appearance in the X-Men film, albeit in tattered clothes.
As in the comic books, Mystique holds dear the well-being of her two children, Rogue and Nightcrawler. Whereas the latter seems to return the love, Rogue deeply despises Mystique and even attempted to kill her at one point. The story of her separation from Nightcrawler was changed (she was attacked by wolves while on a bridge, causing her to drop him accidentally). Like her comic book counterpart, Mystique here possesses shapeshifting powers, however, she is also able to change her body mass as well, which allowed her to take various animal forms, ravens being her favorite. She also has superior human strength, being shown to the limits of kicking, and shattering the head of a stone statue.
In the first season, she is disguised as the principal of Bayville High, under the alias "Raven Darkholme", and is second-in-command to an initially unseen Magneto. She also found Avalanche, Toad, Blob and Quicksilver to be her Brotherhood while Professor X was recruiting new X-Men. Mystique was exposed to Magneto's mutation-enhancing machine and her powers were increased; notably she could alter her scent to smell like the person she was imitating. After a period of absence Mystique reappeared under the alias "Risty Wilde" and befriends Rogue to infiltrate Xavier's mansion. Later, she kidnaps and impersonates Professor X and causes the mansion to self-destruct. Mesmero, who was a servant of Apocalypse, managed to get Mystique to take control of Rogue and steal the powers of the X-Men, Brotherhood, and Acolytes so she could give them to Apocalypse. Mystique's powers were needed to open the third door to Apocalypse's tomb. She turned into a snake and slithered through a hole. She was tricked and turned to stone herself and Apocalypse rose from his tomb. Rogue was going to use her powers to save Mystique but changed her mind, instead pushing the stone body over a cliff and shattering it.
In the series finale she came back as a Horseman of Apocalypse with her powers greatly advanced (even allowing her to become a mere puddle on the floor or create holes in her body at will to avoid attacks, as well as healing injuries virtually instantaneously whilst seemingly feeling no pain). After Apocalypse was defeated, she turned back to normal and tried to apologize to Kurt and Rogue for everything she had done but the two walked off and ignored her.
(cut & pasted from the wikipedia article)
As in the comic books, Mystique holds dear the well-being of her two children, Rogue and Nightcrawler. Whereas the latter seems to return the love, Rogue deeply despises Mystique and even attempted to kill her at one point. The story of her separation from Nightcrawler was changed (she was attacked by wolves while on a bridge, causing her to drop him accidentally). Like her comic book counterpart, Mystique here possesses shapeshifting powers, however, she is also able to change her body mass as well, which allowed her to take various animal forms, ravens being her favorite. She also has superior human strength, being shown to the limits of kicking, and shattering the head of a stone statue.
In the first season, she is disguised as the principal of Bayville High, under the alias "Raven Darkholme", and is second-in-command to an initially unseen Magneto. She also found Avalanche, Toad, Blob and Quicksilver to be her Brotherhood while Professor X was recruiting new X-Men. Mystique was exposed to Magneto's mutation-enhancing machine and her powers were increased; notably she could alter her scent to smell like the person she was imitating. After a period of absence Mystique reappeared under the alias "Risty Wilde" and befriends Rogue to infiltrate Xavier's mansion. Later, she kidnaps and impersonates Professor X and causes the mansion to self-destruct. Mesmero, who was a servant of Apocalypse, managed to get Mystique to take control of Rogue and steal the powers of the X-Men, Brotherhood, and Acolytes so she could give them to Apocalypse. Mystique's powers were needed to open the third door to Apocalypse's tomb. She turned into a snake and slithered through a hole. She was tricked and turned to stone herself and Apocalypse rose from his tomb. Rogue was going to use her powers to save Mystique but changed her mind, instead pushing the stone body over a cliff and shattering it.
In the series finale she came back as a Horseman of Apocalypse with her powers greatly advanced (even allowing her to become a mere puddle on the floor or create holes in her body at will to avoid attacks, as well as healing injuries virtually instantaneously whilst seemingly feeling no pain). After Apocalypse was defeated, she turned back to normal and tried to apologize to Kurt and Rogue for everything she had done but the two walked off and ignored her.
(cut & pasted from the wikipedia article)