We should be able to trash/delete unwanted cards

We should have the ability to delete, remove, or donate any card, of any rarity, including promo A and B cards, which accumulate unnecessarily. If a limit were to be imposed, it could be set at two copies of each card, as in other mechanics. Perhaps this deletion or exchange could be done in return for Iris Dust or something that doesn't affect the metagame. All of this is to provide a more comfortable quality of life for players and give them the ability to adjust their collection according to their own preferences.