prelegend
Someone that is not yet famous or admired for a skill or talent but in the future they are certain to be a legend.
Jordan: Wow, Matthew is soooo good at chess.
Brandon: I know, if he keeps it he will be a real hero.
Scott: Matthew is such a prelegend.
Brandon: I know, if he keeps it he will be a real hero.
Scott: Matthew is such a prelegend.