To end the long-running feud between Superman and Goku fans regarding who’s stronger, Zeron has decided to step in. He wants to assess these two heroes’ capabilities himself first. So, he has invited Superman to the city of Dahaka and gave him a challenge. (He will judge Goku later).
This is a companion discussion topic for the original entry at https://toph.co/p/superman-and-the-buildings-of-dahaka