A template that outlines the key measurements for designing a trading card to make sure designs and text will fit into the design and print properly.
Measurements created are based on what I could find. I apologize if these end up being wrong or change/update with new standards and parameters in the future.
Document measurements: 69mm x 94mm
Trim Measurements: 63mm x 88mm
Bleed Measurements: 57mm x 82mm
These were made with measurements to the best of my knowledge.
I designed these to be solid boxes instead of lines like most other guidelines like these depict because seeing the parameters as solid shapes and colors works better for me personally.
I designed these to be solid boxes instead of lines like most other guidelines like these depict because seeing the parameters as solid shapes and colors works better for me personally.

Adjust opacity, layer type, etc. to your liking and comfort level.
Mask the entire layer for trim to the background color of your Clip Studio Paint workplace to create the illusion of a trim to get a preview of what the card would print out to be. Toggle this on and off as needed to align all important content as needed.