Well is someone idea, don't know who. The idea is to request a pokemon egg, that hatches after 15 posts. After 285 more posts it's fully evolved, if you want that and lv 100. When it's lv 100 you can ask for a new one.
You can read more about it here
As for trainer cards. They seem to be purely for the fun of having them. You can ask other people if they could make them for you.
Try Umbreon Shadow, here
Someone correct me if I'm wrong.