With a brand new name.
Black Zero is based on an evil version of Conner Kent from an alternate timeline, but hey, everything happened, everything matters, including to corner Kent and Donna Troy.
In 1968, Black Zero was a Superman villain who had been hired to ensure Krypton's destruction and planned to do the same to Earth[...]
Black Zero Archives
If you're watching the new Syfy series Krypton, then you've heard them use the name "Black Zero" to describe what the leaders of Kandor City would call a terrorist organization So far, we've yet to really see anyone who were part of the group, but the name has been bandied about like a bogeyman So[...]