Adding custom cards is no different from adding any other custom item (well there would be few extra steps like putting the card bmp file in proper location and adding prefix/suffix to show when the card is bound to an equipment - both still follow the old way it was done) Now since you see an error after adding an entry in iteminfo lua file it means your client is reading the lua file instead of the id2num desctable and nametable txt files, So focus on the lua file. As for the error, the syntax looks ok . just check if there is a comma added before your [35000].