A system that would prevent the release of Pokémon unintentionally or intentionally. A mark/star that can be activated/deactivated at the top of Pokémon display card that would prevent Pokémons from been released giving a message like "Sorry you can't release your favourite pokemon". Why I ask this is because sometimes I feel like I may have released some of my best Mon by accident and I go back to pc checking one by one. I know am probably not the only player that experiences this. I know this may experience some difficulty or not perhaps implemented. I do also think it could also reduce the number or recover Pokémon request. Thank you.
EDIT: I am not really good at editing, so I did a simple work of what I mean