Marvel: Electromagnetic Pulses

Lorna Dane (Polaris)
Polaris can focus her magnetic energy into powerful concussive blasts. She can also overload or short-circuit electrical systems. She has been shown destroying Shi'ar warships with single magnetic pulses.

Max Eisenhardt/Erik Lehnsherr (Magneto)
Magneto has the ability to shoot powerful rays and electromagnetic pulses and has shown this ability to destroy both metallic and nonmetallic objects. Magneto can also use this ability to seriously injure his enemies, as he did with Storm.

Onslaught
He also has creative uses of his powers such as using his telekinesis to channel the Earth's magnetic field through the electro-current of his brain and generate devastating electromagnetic pulses.