If there is a specific card you want you can craft it in the 'Crafting' menu by selecting the 'Collection' option and then pick the card from the House or Faction it belongs to. Once you have selected the card you desire the option to 'Craft Card' will appear on screen which will display the number of inks and time required to make the card. Providing you have the sufficient resources available tap 'Craft Card' to create it. Although crafting a specific card takes more time and ink it does allow you pick exactly what you want.