Here is a checklist to every English Digi-Battle card that I know of. Please let me know if you discover something else. I hope it helps. https://docs.google.com/spreadsheets/d/1e1tLZo3J-b5FREoOIaCGc2ycH5pcZqHF1RECm7zmJHk/edit?usp=sharing
Also, here is a link showing which chase cards you could pull from each series 3-6 booster pack and the respective pull odds within each booster color variation. Special thanks to Dennis Griggs for creating this and providing the link. Both he and I would admit this isn’t official, but we’ve never seen anything that doesn’t fit with this paradigm.
And here is a checklist for you French Digi-battle fanatics: https://docs.google.com/spreadsheets/d/10DCR8HXc5fWQyOw_7w3koG3VeHYCoss-IwDcinP5vSo/edit#gid=0
Remember if you want to see a larger picture of the card, you can always zoom in or right click and open the image in a new tab.