The Hyborian Tome [Hyborian War Repository]

Ah, Starbreaker. The image above, with Starbreaker putting the smackdown on Superman, is one of my favorite memories from what was probably my very first copy of a Justice League of America comic book, all those many years ago.

I never got to read the finale of that particular story, where Sargon the Sorcerer appeared to help the JLA to deal with Starbreaker. Starbreaker has held a special place in my comic book heart ever since.

Wasn't he some kind of space vampire?

An incredibly powerful "cosmic vampire" that feeds on entire planets. Starbreaker was driven away from the planet Rann by Adam Strange and the Justice League. After, he headed to Earth for revenge, but was defeated by the JLA and Sargon the Sorcerer, and subsequently imprisoned by the Guardians of the Universe. Years later, Starbreaker returned and destroyed the planet Almerac, but was once again defeated by the Justice League.