TIP Get a few active affiliates and you can be Premium every month by just redeeming the Friendship Points they generate for you.
Use the 'search' link for the card you're interested in, to find those users who have or want that card:
|Y2||Great Race Scientist||Character||P||search|
|Y6||Library at Pnakotus||Support||P||search|
|Y4||Master of Time and Space||Character||P||search|
|Y7||Traveller of Aeons||Character||P||search|