Create an epic illustration of a mythical goddess embodying the power of electricity and ice. She stands proudly atop a rocky mountain, surrounded by a stormy sky and dark clouds. Her hair flutters in the wind, charged with flashes of light that dance around her. Her skin and clothes are translucent, as if sculpted from pure ice, reflecting the light of the flashes. She wears a flowing dress that seems to be made of ice crystals, and her eyes shine with an unearthly intensity. The overall atmosphere is both majestic and mysterious, evoking a primordial and timeless force.