Let's see if I can find it... ah! Well, if you're talented enough to make one for yourself, you can find a whole slew of empty trainer cards here
. This way, you can make trainer cards to your liking. However, If you don't know how to make them, you could always ask for one of Amphy's. These are the official trading cards of Psypoke. Click here
to get to those. Or, if you'd like something more unique, you may ask for one in a shop at the Fan Art
Hope this helps!