It's added to the criteria.

This is literally obvious (or this wiki wouldn’t be called the Shonen Rivals Wiki), meaning it is completely useless.

One thing that Shonen Rivals DO have in common that isn’t deadpan obvious is being a mentor.

Piccolo, Sasuke, and Zuko are good examples.

@Ferrari Fan 488 Should being a mentor be added?

Yes.

Another common Shonen Rival trait is that they have a inferiority superiority complex, meaning that they pretend to be arrogant to hide their insecurities.