Eterno

Eterno, the Immortal

"...mightier than a million mastodons...more intelligent than an army of Einsteins..."

Eterno, is a massive and all-powerful android constructed by aliens known as Xans on Earth a billion years ago. When the Xan were threatened by space gas, Eterno journeyed to the earth's core to retrieve the element Absorbium. However Absorbium deactivated Eterno and the Xan perished.

Eterno is re-awakened by three members of the Superman Revenge Squad as their monstrous minion against Superman. Unfortunately for the evil Squad, after a titanic battle with Superman, Eterno turns on them, and a collison between the Squad's ship and the robotic colossus leads to the destruction of the Revenge Squad members and the mechanical marvel. (Act No. 343/1, Nov 1966: "Eterno, the Immortal!")