In the distant past, a dying alien race created a number of containment devices in which to preserve their culture. They sent them into space with contact teams, intent on meeting other civilizations. When a small group of these aliens arrived on the planet Krypton, they were met by the militant Kem-L, who killed them and corrupted one of their devices. Its new mission was to preserve his ideal of Kryptonian culture by eradicating all others - and thus the device became known as the "Eradicator."

This was an old custom, but since I was taking pictures... he made it to the Realm.

Base: Red Tornado
Cape: Superman figure (dont remember which one)
Aves Epoxie for details.