Why did Han Xin Feiheng lose his dignity?

Han Xin in Honor of Kings is an assassin hero, and Fei Heng is one of his limited skins. Han Xin's output ability in the game is extremely strong and the operation is extremely difficult, so he needs diamonds to obtain it. The Feiheng skin is a skin sold for a limited time. Because it is liked by many players and has high strength, its dignity has been reduced.