Supreme before Moore

I don't want to get lost too far down the rabbit hole of Supreme before Moore took it over, as frankly it isn't all that interesting to me, and Moore would abandon it all anyway. So, in the name of expediency, I turn to Wikipedia:

Supreme was introduced in issue 3 of Rob Liefeld's Youngblood limited series as a flip book story, before he was spun off into his own series. His history varied; at one point, he was an angel of vengeance who quoted the Bible to justify his actions. At other times, such as when he defeated the Norse god Thor and took his mystical hammer Mjolnir, Supreme considered himself a god. Although the most powerful being in the Liefeld universe, he had his share of defeats: he was killed in the cross-title Deathmate Black series (published by Image and Valiant Comics), lost his powers in Extreme Prejudice, and was killed by Crypt in Extreme Sacrifice.

The character received a comprehensive treatment in The Legend of Supreme, a three-issue miniseries by Keith Giffen and Robert Loren Fleming. In the miniseries, reporter Maxine Winslow investigates Supreme's origin story. Winslow learns that in 1937, Ethan Crane shot and killed two men in retaliation for the rape of a 15-year-old girl. Crane was shot by two police officers, but survived and was sentenced to life imprisonment. In prison, the government offered him a chance to participate in a human-improvement experiment in the hope that (unlike the six previous guinea pigs) he would survive.

Although Crane died like the others, unlike them he returned to life in a world which was strange and new to him. He found his way to a church, where he received sanctuary from Father Beam and discovered some of his new abilities. Crane took the name "Supreme" and, hearing about the war in Europe, decided to do his part. Little was revealed about Supreme's work in World War II, except that he joined the Allies. After the war, Supreme believed that he had done his part as a good Samaritan and left Earth; in reality, Father Beam's accidental death at his hands drove him away.

Supreme spent decades in space, fighting a number of threats on the side of an alien race known as the Kalyptans (the race of Gary Carlson and Erik Larsen's Vanguard). He returned to Earth in 1992 to find a changed society, which included genetically-enhanced superpowered humans on teams such as Youngblood and Heavy Mettle. Although Supreme was briefly the field team leader of Heavy Mettle, he left the position after defeating the villain Khrome.

When Supreme fought Thor for Mjolnir, a character named Enigma acquired another Supreme from an alternate timeline to store if Supreme was defeated. Supreme was victorious, so the other Supreme was left alone; this figured in the events of The Legend of Supreme. Although Supreme apparently died during an assault on humanity by Lord Chapel, he was stranded on an alternate Earth for several years until the alternate Supreme (stored by Enigma) returned and was defeated by the original Supreme. Original Supreme switched bodies with the alternate Supreme, restoring his powers. After several events involving Enigma and Probe (Supreme's daughter from the future, also known as Lady Supreme), the original Supreme worked with Probe, Enigma and the alternate Supreme to defeat the evil Norse god Loki (who had shifted realities). At the end of Supreme #40, Probe remained on the alternate Earth and Supreme returned to Earth.

So, yeah, that happened.