Yes, there's definitely a way to automate the process. I assume you're familiar with at least some basic data processing; all card data can be found by querying this URL: https://api.godsunchained.com/v0/proto?format=flat , which is what I used for GUListCreator.

To automate the process, something like this might work:

1. Call API, get JSON data
2. Read JSON data and format it
3. Write to a CSV file
4. I think Google Sheets has macros that can automate this and populate the cells

Of course, this will probably only cover cards that are available in-game now and will not be able to cover things like cards in the upcoming Core Set refresh. Hope this helped!