aVersionOfReality writes:
Randomized Modular Textures — each duplicate of the object has a different selection of 3 random Symbols from a sheet of 9, one Border of 6, and random colors.
This tutorial teaches you how to make a node setup that gets a random tile of an image by manipulating the UV coordinates. There are several core node groups that can be reused, and example groups built around them that are specific to making these cards from my Reimu project.
If you want to support me and save yourself the setup time, the file is available on Gumroad($).