As Magneto's son, Pietro has always been desperate to win his father's approval, and is crushed when instead it's given to his sister Wanda (The Scarlet Witch.) As such, he resents her, though she tries to help him improve his relationship with Magneto. Pietro is the de facto leader of the Brotherhood. He possesses the mutant ability to run at superhuman speeds over great distances. With speeds of over 175 mph, he can create a whirlwind by running in a circle; his temper can be as quick as his feet.