Why would they fight? They're friends.

^that's exactly why they would fight. They're friends 😑😄

Probably but katana is more skilled so no

They'd fight for comic book reasons. Somebody's a clone, or mind-controlled, or from an alternate reality. Whatever sells more issues. Two heroes being friends has never stopped fan battles before. Why shouldn't they fight?

Depends who the writer needs to win in their story.