You earn Wild Cards by clearing cards. With this ruleset, Wild Cards are awarded for every 12th card cleared; each Wild Card allows you to discard a card (for a total of 3 per game) whenever a Wild Card is available. Wild Cards are best used to help you get out of situations in which you may be stuck. You may drag or tap to discard the topmost card from a stack. When the Wild Card is tapped, you initiate a "discard state" where tapping a card discards it and tapping the Wild Card again cancels the use of that Wild Card.