Sunspot.

About Sunspot

Sunspot is a superhero appearing in American comic books published by Marvel Comics. The character is most commonly associated with X-Men-related groups, the New Mutants and X-Force. Classified as a mutant, Sunspot possesses the ability to absorb and channel solar power into physical strength. His personality is idealistic and impulsive, but despite this he is considered a close friend by many of his teammates. He is initially portrayed as an important member of the X-Men's 1980s-era junior team and its reincarnation X-Force. He later retires as Sunspot and garners a massive fortune that allows him to buy out the Advanced Idea Mechanics organization, which he re-brands to Avengers Idea Mechanics. He then operates under the code name Citizen V.