Solaris

Aka Sandra Norton. Unique original character for the Marvel, X-Men universe. A powerful mutant who uses the Sun as her energy source. When at the peak of her solar "charge" - she gets mighty superhuman strength (enough to easily lift a bus full of people with one hand); speed, and stamina; ability to throw blinding solar flares and incinerating fireballs; ability to levitate/float up in the air, if not fly per se; and the ability to heat her body enough to burn anyone foolish enough to try grabbing her. On the flip side - much weaker at night, or even on cloudy, gloomy days without much sun. 18 years old, a resident student at the X-Institute. Friendly, outgoing, loyal and protective of her friends.