 Orton became a member of the stable Evolution shortly after his WWE debut , which quickly led to a Intercontinental Championship reign , his first title with the company . He also acquired the moniker " The Legend Killer " during a storyline where he began disrespecting and then physically attacking WWE Hall of Famers and wrestling veterans . At age 24 , he became the youngest person ever to hold the World Heavyweight Championship . With this win , he departed from Evolution and a feud with his former stablemates began . In 2006 , Orton joined forces with Edge in a tag team known as Rated @-@ RKO . Together , they held the World Tag Team Championship . 
