This is a way to create an ongoing Trello Card backup. If a Card is added to a Trello board of your choosing, IFTT adds a row to a Google Sheet of your choice.
Then
Add row to spreadsheet
This action will add a single row to the bottom of the first worksheet of a spreadsheet you specify. Note: a new spreadsheet is created after 2000 rows.
Explore more great ways to automate Google Sheets and Trello