Legacy Hero
A Legacy Hero is a hero who's title, powers or duty to heroism was passed onto him/her by a predessessor. The Legacy Hero is diametrically opposed to the Legacy Villain.
Description
A legacy hero is a type of character, usually a superhero, that is the descendant or relative of an already or previously existing hero who either inherits or adopts the name and attributes of the original.

https://literaryconcept.fandom.com/wiki/Legacy_Hero