#2 Mean Mark becomes The Undertaker
Widely regarded as being the best pure athlete in WWE history, as well as the greatest WWE Superstars of all time, The Undertaker was a bland character back in WCW, during the early 90s. His Mean Mark character in World Championship Wrestling didn't do his career any favours.
Also read: 3 times Batista turned on his friends
A top AEW star just called one of his colleagues 'spoiled' and 'narcissistic' HERE.
When Mark Calaway moved to WWE, he was repackaged as The Undertaker, a mysterious and spooky character who preferred to let his punches do the job instead of running his mouth. He debuted at Survivor Series 1990, as a part of Ted Dibiase's dream team.
Today, The Undertaker is a future first-ballot Hall of Famer who has done it all in the wrestling world. He has won 24 matches at The Show of Shows and has won multiple World Championships. If it hadn't been for the gimmick change, The Undertaker would never have become a living legend.
Also read: 3 greatest Superstar sendoffs in WWE History