Magic

Superman has one other weakness. Magic a magic blade can cut him and make him bleed.

But what kind of magic to use on him.

Maybe a love potion. It would be handy to have a super sex slave who is willing to do anything you ask. Inga just had to remember not to ask him to do anything evil. It may break the spell.

As long as she did not try to make him go against anything he truly believed him he would do what ever she asked.

But how to trick him in to taking a love potion.

Making it was easy she knew a witch that owed her several favours.

She was given a 20 ml bottle of some pink stuff that smelled of roses.