Avalonofthewind
Godot Brew#107
It was actually created by an alien culture as an encyclodia of sorts. Eventually it ended up on Krypton and Kem EL reprogrammed it into a kryptonian policy enforcer. Eventually, it went into the hands of "The cleric" who gave it to our Superman as a prize. It started morphing people around, and turning Supes into an emotionless Kryptonian. Supes got rid of it by throwing it into the sun, but all that did was piss it off. It turned into an energy being, turned the sun red, and started transmuting earth into the new krypton. It was defeated by using basically an equivalent to the soul gem. Once Superman died, it came back to preserve Kryptons legacy, but after it transmuted a stone slab into a replica of Supermans body, it got confused about its identity.
Erads has a long, crazy history.