Hi, @Painter! There is no such option per se. You may create a new account but I'm not sure whether it would resolve your concerns. I would like to suggest you to share them with the game community - it might come up with some original solutions for the issues, that I assume you're experiencing now.

In case there are any technical issues - don't hesitate to contact support team: https://mobile-support.plarium.com/hc/en-us/requests/new?ticket_form_id=360000007492

In case you have any specific in-game questions about the development of your Champions, feel free to ask them in a distinct post in this Forum.