Known predominantly as a space pirate, Amalak was on the run from adversary whom he had defrauded during his past capers, and sought to obtain ill-gotten gain from Earth-One. However, he perceived as a threat to his schemes the presence of Superman, and so with his technology Amalak kidnapped four humans whom he mutated into four elemental beings to use against the Kryptonian. And indeed these new minions of his proved more than a match for Kal-El, until Amalak egotistically prevented them from defeated the Man of Steel. Seeking to provide the killing stroke, instead the problematic pirate was vanquished by Superman when Amalak commanded the fearsome foursome from finishing his foe. This led to a long running enmity between them.
An android of alien origin known as the Chief, created by Vandal Savage, was first utilized as a henchmen when his master joined the Injustice Society and they both battled Hawkman. Following a swift defeat by the Winged Warrior, the Chief was retrieved by his master to be used for another scheme decades later that involved Kal-L and Kara.
Supergirl had herself become prey for Amalak, who first used another alien that blamed all Kryptonians for the destruction of his home world, and then would also seek vengeance upon the cousins for the repeated humiliations of his defeats at their hands. Power Girl also became the prey of the Chief, not on a robotic world designed by his creator, luring her into a trap whereby Savage leached Kara's superhuman abilities to use against Kal-L in battle. With the aid of their Justice Society comrades, however, Superman and Power Girl defeated by Vandal and the Chief, with the latter left behind on his ravaged world.