Superman, Vol. 2 #78A

Reign of the Supermen - Alive
There are four contenders for the Superman shield out in public. This issue introduces us to the Cyborg model. Though his memories are incomplete, he remembers a farm in Kansas, and the name Kent, as well as his history with Lois. He also goes to great lengths to make sure Doomsday is removed from Cadmus, and he passes every test Emil Hamilton can devise with flying colours.
Release Date: 1993