UNDO & REDO Button for unsure upgrade

Hello! My first post and my first ideea for un update. I’m sure most of us we used some of the 3,4 star heroes to feed others and we might change our mind later. You can implement an UNDO button for an amount of gems. Like 50 per undo or something like that. It will be nice even if we are asked first for the 3 star all ready. Tell your thoughts. Thanks!

A post was merged into an existing topic: Ability to reverse an accidental feeding of a hero