SUPERMAN from Justice League God and Monsters.

This version of Superman is pretty intriguing and not bound by the same morals as the main one.
Apart of a story called Justice League Gods and Monsters were the characters of the Justice League are more brutal in definition of their heroic pursuits. The Batman of this group is a vampire who feeds off criminals.This Superman would kill his enemies. The Wonderwoman of this world is not an amazonian and yet if anything more critical of men for what happened to her fiancee and uses a sword instead of lasso~ also would kill their enemies. Its a different story of course.