Allow players to freely change their characters at any time without limitations. What is the purpose of role-playing when you can simply switch your character in any form to ensure victory? This completely undermines the immersive experience. Even though I restrain myself from using this cheating system, I am utterly disgusted by its existence!
I cannot help but wonder why such a detrimental system was ever created. if you want players to try more builds, a sober idea is supposed about to make a better game that people want to play multiple times. if you want to avoid that player might sometimes stopped somewhere due to weakly build, you should balance the classes and bring more creative solution in the game, instead put a cheating machine at my camp!!