The game is driven by cards which can be printed out using most home printers. The Victory cards can be found here. Each Clan has its own set of Focus Card. These can be found by clicking on the image of the main Hero of the Clan.
The card I use is 300 gsm, available from Amazon here. I use these card protectors, they are slightly too big, but 'do the job'.
If you want, you can give the cards a better look by printing the Waelstowe logo on the blank back
Focus Card
Victory Card
Back of card