Electro-magnetic energy generation at Unearthly ability. Siena can generate the same type of energy that shield the earth from solar radiation. This permits her the following:
She can ride the earth’s EM spectrum, and leaves behind electromagnetic energy trail.
She constantly emits Amazing energy to all in one area, decreasing by -1CS per area out.
She is immune to her own power.
She can project it as an energy blast at up to Unearthly rank, but only has a Good chance to hit. Reducing this to Amazing or lower gives her a Remarkable chance to hit.
Use of her Electro Magnetic power at full rank will cause a Monstrous rank electromagnetic disturbance and shred the ecosystem for miles.