Personal Info:
Real Name: Lloyd Bloch
Also Known As: Nefarius, Byron Becton
Place Of Birth: Frederick, Colorado
First Appearance: Captain America Vol.1 #169 (1974) Bronze Age Villain
Known Associates: Secret Empire
Group Affiliation: Former agent of the Secret Empire, The Corporation, Quentin Harderman, Committee to Regain America's Principles
Base Of Operations: Mobile
Grudges: Captain America
Creators: Steve Englehart and Sal Buscema
Gallery: Click
Enhanced Abilities: Moonstone has super human strength, agility, speed, endurance and durability.
Light Control: Moonstone has the ability to create light in any part of the visual spectrum. He has developed this to allow him to create blinding flashes of light and fire laser beams.
Flight: Moonstone can manipulate Gravitonís to fly at about 60 Mph.
Phasing: Moonstone can phase through solid objects as long as he can hold his breath.
Lloyd Bloch was affiliated with the Secret Empire, set up by them to take Captain America's place as America's 'symbolic' hero, after the Empire had damaged Cap's reputation by accusing him of vigilantism and framing him for the death of small-time criminal Tumbler. Bloch actually murdered the Tumbler himself with little remorse.
He was empowered by a stone found on the Moon's surface, hence his code-name. Bloch was a petty criminal who was stealing the Moonstone. When he was intercepted and fired upon by the police, fragments of the Moonstone merged with his body granting him super powers.
Moonstone I at Marvel Database
Moonstone I at Comic Vine