I'm new here,and I can't find it on shop search,and the trades are not working. How much is a Slots Trading Card worth? =]

You need to click the 'Search Shops' button again. There are some other going for around 230sP

Welcome to the site. :)

The slots trading card is searchable item in shops actually; it's possible that nothing may of come up on the first try, just keep looking.

I'll go ahead and lock this.