Trading Card system

[Luigifire]

How can I make a trading card system like this site's forum?
hxxp:boomansion.net/ [nonactive]

[Oldiesmann]

It is a custom system that was created especially for their site...

The Boo Mansion Trading Card Game (BMTCG) is a card game that was created for the members of Boo Mansion to play. Designed by Booton Taichou, with some help from the other staff, especially Medri.

If you want one for your forum, I suggest contacting them and asking how much it would cost for them to set up a similar system for you (you won't get that for free).