@Nicholas_Diogo you can archive cards rapidly using the "c" key, or move cards to a list and archive all cards in the list with the menu options at the top-right of the list, but if it's truly *deleting* that you want, the only way to do it in bulk is to move all the cards you wish to delete into a list, move that list to a new board, then delete the board.
Or you can use the API, this Trellinator function would delete all cards in a list, you could filter by label or some other condition:
You can read more about Trellinator here:
If you had to thrive a new habit during a lockdown, what would it be? Trello
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