Pokémon Card Guide
Pokécharms Trainer Card maker being down upset me, so I decided to create my own Trainer Card manually. After a few others also seem disappointed it was still down, I decided to make blank cards, so that anyone can create their own with pretty much any editing or art application! Below is an example of a finished card, though yours can take creative liberties, and I don't need credited for the cards or frame if you use them. Made by solarcanic ^^
Resources
These are some backgrounds I used by default, although you do not have to use them. If you don't like any of these, I have listed the frame for the card above them, and you can use any sort of custom image of your own as the background (+ color the frame differently). Helpful links for some background ideas, if you don't have any: Pokémon Box Wallpapers | Pokémon Masters Mindscapes
To find Pokémon Sprites, I reccommend the box sprites found here: PokéSprite. For Trainer sprites, always feel free to use your own, though Pokémon Showdown's trainers help: Trainer Sprites. Just make sure you credit the artists of the custom sprites! For the font, I used the FrLg font recreation here: FrLg Font.