Antagonistmaincharacter Stories

Leah is like anyone else in her grade. Almost. She has magic, she plays the game, she follows the rules. But her magic has a mind of its own. Not in a bad way, more like how you or I might do something on an impulse. Another thing is, no one her age seems to like her. Everyone thinks she's strange. But when one game goes horribly wrong, her magic is turned against her and she corrupts, turning on everyone she knows. Will Leah be able to save herself when no one can save her, or will she be cursed forever?